Sentinel Prime (G1)

2022-04-13T14:15:46Z

MarioandSonicFan: changed caption

{{disambig3|Sentinel Prime}}
{{factions|quintesson|autobot|nexusprime|onyxprime}}
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:''Sentinel Prime is an [[Autobot]] leader from the [[Generation 1 continuity family|Generation 1]] [[continuity family]].''

[[File:Sentinel prime lou.jpg|upright=1.1|thumb|Well, shoot, who wants the Matrix?]]
'''Sentinel Prime''' is an imposing figure, standing head and shoulders over the average Autobot. Bristling with some of the most heavy-duty weapons and armor available to the Autobot army has instilled in Sentinel Prime a supreme confidence in his own abilities as both a leader and a fighter. Unfortunately such pride usually precedes a fall, and there will always be [[Megatron (G1)|someone]] out there keen to prove a point, or who merely sees Sentinel Prime as an obstacle on the path to a bigger destiny.

Sentinel Prime is typically, but not always, depicted as [[Optimus Prime (G1)|Optimus Prime]]'s immediate predecessor as [[Prime (rank)|Autobot leader]].

{{bigquote|He was flawed, as we all are. Perhaps he failed. But he faced a choice, when the Matrix came to him. And in that moment, he chose to '''try'''.|Optimus Prime|"[[War World: Awakenings|Awakenings]]"}}

==Fiction==
===Generation 1 cartoon continuity===
====''The Transformers'' cartoon====
{{voiceactor|[[Jack Angel]] (English), [[Takurō Kitagawa]] (Japanese)|[[Éric Etcheverry]] (European French), [[Older Cazarré]] (Brazilian Portuguese)}}

[[File:Autobot gladiator.jpg|upright=1.4|thumb|You've got the pre-Touch! You've got the pre-Power! Pre-Yeah!]]
{{Note|The original cartoon version of Sentinel Prime was never named in fiction. The character is referred to as '''U-Haul Robot''' in the dialogue script for "Five Faces of Darkness, Part 4" and was not given the name "Sentinel Prime" until ''[[Transformers Animated: The AllSpark Almanac II|The AllSpark Almanac II]]'' [[retcon|declared it so]] via an [[Ask Vector Prime]] entry. Likewise, the earlier appearance of "U-Haul Robot" was dubbed "Sentinel Major", giving him a pre-Matrix name.}}
'''Sentinel Major''' was originally one of the Quintessons' slave robots on [[Cybertron (planet)|Cybertron]] around twelve million years ago. Unusual among his consumer goods brethren, Sentinel Major was equipped for combat and was forced to participate in [[Gladiatorial combat|gladiatorial games]] for the Quintessons' amusement, wielding a spiked ball-and-chain weapon and a tire-shaped shield. He was once defeated in battle by [[Prima]], who attacked their Quintesson masters when their match was over, only to be destroyed himself.

Subsequently, the consumer goods robots rose up against the Quintessons in a rebellion that ultimately forced the aliens off the planet. Sentinel Major survived this clash, but he and the rest of his race—now dubbed "Autobots"—were robbed of any chance of peace when the military hardware robots, now known as "[[Decepticon]]s", set their sights on conquering Cybertron for themselves. Two [[Guardian Prime|Autobot]] [[Zeta Prime (G1)|leaders]] fell during the war that ensued, and Sentinel Major inherited the Matrix of Leadership and became '''Sentinel Prime''', leader of the Autobots. Under his leadership, the Autobots realized that they would never be able to defeat the Decepticons with firepower, and they turned instead to stealth, reconfiguring their bodies to be able to [[Transformation|transform]] into other forms. With the power of his new ability, Sentinel Prime defeated the [[Trannis|Decepticons' leader]], and the Autobots won the war.

[[File:Aubotot gladiator vehicle.jpg|left|thumb|He transforms into Rhi, the forgotten Beast Rider.]]
The ensuing period of peace was known as the [[Golden Age|Golden Age of Cybertron]], but, around nine million years BCE, the Decepticon threat re-emerged when they too adopted transformation, and coupled it with robot-mode flight powers. One of the first of this new breed of Decepticons, the malevolent [[Megatron (G1)/Generation 1 cartoon continuity|Megatron]], killed Sentinel Prime in combat. As he died, Sentinel Prime handed off the Matrix to [[Alpha Trion (G1)|Alpha Trion]], who kept it safe until the emergence of the next Autobot leader, [[Optimus Prime (G1)/Generation 1 cartoon continuity|Optimus Prime]].

When [[Hot Rod (G1)/Generation 1 cartoon continuity|Rodimus Prime]] journeyed into the Matrix in 2005, Sentinel Prime was the sixth guide he encountered. Sentinel Prime recounted the development of transformation, the Autobot victory in the war and the rise of Megatron. {{storylink|Five Faces of Darkness, Part 4}}
{{-}}

====''Legends'' comic====
The U-Haul robot's spirit was present within the Matrix alongside [[It]] and [[Ultra Magnus (G1)/Generation 1 cartoon continuity|Ultra Magnus]] when [[Alpha Trion (G1)|Alpha Trion]] approached Magnus with an offer to bring him back to life. {{storylink|LG14 Ultra Magnus Prologue#Resurrection Chapter|Resurrection Chapter}}

====''Wings Universe''====
{{wingsnote}}
Sentinel Prime was presumably a descendant of the first of the Sentinel line, [[Sentinel EnN]]. {{storylink|A Team Effort}} Before ascending to the rank of Prime, Sentinel Prime was known as Sentinel Major. {{storylink|Ask Vector Prime#Facebook|Ask Vector Prime, 2015/05/28}} Sentinel Prime's legacy lived on in other 'bots who took on the "Sentinel" name, including another [[Sentinel Major]]. {{storylink|Hasbro Transformers Collectors' Club issue 35|''Wings Universe'' Sentinel Major profile}}

===Marvel ''The Transformers'' comics===
{{noteukonly}}
Sentinel Prime was mentioned in a recitation of Primes, after [[Prime Nova]] and before [[Optimus Prime (G1)/Marvel Comics continuity|Optimus Prime]], by the [[Matrix of Leadership|Creation Matrix]]. {{storylink|Dark Creation}} ''He passed it on during a violent situation.'' {{storylink|The Legacy of Unicron!}}

===3H comics===
The Matrix was passed from Prime Nova unto Sentinel Prime, who subsequently bequeathed it to Optimus Prime. {{storylink|Covenant (story)|Covenant}}

===Dreamwave ''Generation One'' continuity===
[[File:Sentinel prime dw.jpg|thumb|"Marley was dead to begin with..."]]
Sentinel Prime was Autobot leader for the first 500,000 years of the [[Great War (G1)|Great War]]. With [[trithyllium]] alloy armor, an [[electro-disrupter]] and a large variety of other weapons, including various forms of artillery shell, a solar energy rifle and energon-charged sword, Sentinel Prime was a giant among giants. {{storylink|Transformers: Hardwired|Hardwired}}

8.2 million years ago, Sentinel Prime faced Megatron on the battlefields of [[Tyrest]]. {{storylink|Transformers: The Ultimate Guide|The Ultimate Guide}} He proved no match for the Decepticon leader; with his last words, he tried in vain to reason with Megatron, but Megatron was unmoved by his "sermon and doctrine" and slew him. Sentinel, however, had considered his death a likely possibility, and had already removed the Matrix of Leadership from his body before entering battle, preventing Megatron from acquiring it. {{storylink|The War Within issue 4|The War Within #4}}

Millions of years later, during the war on Earth, the Matrix used a vision of Sentinel Prime to strengthen Optimus Prime's resolve during a battle with Megatron by confronting him with the claim that Megatron had chosen Optimus to be Prime, knowing that he was weak. Megatron's alleged influence over the Prime selection process was never substantiated. Soon after, the [[Keeper (species)|Keepers]] created a robotic duplicate of Sentinel Prime to confuse Optimus and undermine his confidence. Though possessing all of Sentinel Prime's considerable abilities, Optimus eventually realized that the duplicate had been created from his own memories of Sentinel Prime, and was incapable of doing anything ''new''. Optimus destroyed the duplicate of Sentinel Prime, having largely overcome his own doubts about his fitness to be Autobot leader. {{storylink|Transformers: Hardwired|Hardwired}}
{{-}}

===2005 IDW continuity===
{{first|[[Megatron Origin issue 1|''Megatron Origin'' #1]]}}

{{quote|In '''my''' day, the '''good''' knew their responsibility... and the '''weak''' knew their place.|Sentinel Prime|"[[White Light]]"}}

[[File:Primes IDW.JPG|left|thumb|upright=1.3| Quick, shoot 'em in the back, while they're not looking!]]

Long ago, the [[Titan Master]] '''[[Infinitus]]''' served as a herald of his master [[Nexus Prime]]; when Nexus fell in the [[First Cybertronian Civil War]] at the hands of [[Galvatron (G1)/2005 IDW continuity|Galvatron]], Infinitus joined forces with Nexus's ally, [[Shockwave (G1)/2005 IDW continuity|Onyx Prime]].{{storylink|White Heat}} As the Primes faded into the realm of myths, Infinitus remained on Cybertron and used his Titan Master talents to control a larger body, taking on the identity of "Sentinel" to disguise his ''true'' lineage while he awaited Onyx's eventual return. In time, Sentinel decided that he would use the teachings of the Primes to bring "light" to the "tarnished world" of his birth... even if it meant killing everyone who stood in his way. {{storylink|White Light}} {{storylink|Ten to Midnight}}

[[File:MegatronOrigin1 Sentinel Prime.jpg|upright=1.1|thumb|My fellow Earthicans, we enjoy so much freedom, it's almost sickening. We're free to chose which hand our sex-monitoring chip is implanted in. And if we don't want to pay our taxes, why, we're free to spend a weekend with the Pain Monster.]]

In the years before the dawn of the [[Great War (G1)|Great War]], Sentinel had worked his way up to becoming the head of security for the [[Senate]]; {{storylink|Chaos Theory Part 2}} unbeknownst to his employers, he secretly assembled a militia of sleeper agents, recruited from his closest informants. Using a forerunner of the infamous [[shadowplay]] technique, Sentinel conditioned them to serve him if the time ever came. {{storylink|Last Light (issue)|Last Light}}

One of the duties of his security force was to go around threatening and killing people who got in the Senate's way or risked embarrassing it. Shortly after an assassination attempt on [[Nominus Prime]], he eagerly watched Senator [[Proteus]] announcing the implementation of the "[[Clampdown (event)|Clampdown]]", which would improve security at the cost of "some of the freedoms" of the populace. He was constantly interrupted by reports that an intruder was fighting his way into the [[Grand Imperium]], defeating all the security squadrons Sentinel sent at him. Interested in seeing how things would play out, he stood by as [[Optimus Prime (G1)/2005 IDW continuity|Orion Pax]] entered the Senate's chamber and confronted them over their corruption and detached relation to the populace. Proteus eventually ordered Sentinel to have him removed. {{storylink|Chaos Theory Part 2}}

As the Clampdown began, the Senate, who were behind the attack on Nominus Prime to begin with, had Sentinel try to tap into the powers of the [[Matrix of Leadership]] in the Prime's chest. {{storylink|Shadowplay, Part 1: Post Hoc|Post Hoc}} {{storylink|Liars, A to D Part 3: The Chaos of Warm Things|The Chaos of Warm Things}} In the process, Sentinel discovered that the Matrix was merely a fake, and with this revelation the Senate decided they had no more use for Nominus and had him killed. They went on to spread rumours that Sentinel was showing signs of affinity for being a Prime {{storylink|Shadowplay, Part 1: Post Hoc|Post Hoc}} while he got to work on planning a "Decepticon terrorist attack" that would give him an excuse to round up all proto-Decepticons and send them [[Institute|off for brainwashing]]. {{storylink|Shadowplay, Part 2: Patternism|Patternism}} While [[Optimus Prime (G1)/2005 IDW continuity|Orion Pax]] thwarted this, Sentinel's men were still able to discover that [[Shockwave (G1)/2005 IDW continuity|Senator Shockwave]] was quietly forming an army of dissident [[Outlier (group)|outliers]]. Sentinel ordered Shockwave's academy destroyed in an "accident" and Shockwave himself taken into custody. The rebellious Senator confronted Sentinel and Proteus with his knowledge of their illegal takeover of the Senate, but they were nonplussed and had him subjected to [[empurata]] and [[shadowplay|Brainwashing]]. {{storylink|Shadowplay (Conclusion): An Intimate Beheading|An Intimate Beheading}} {{storylink|Shockwaves}} Orion Pax and his team had a Dead <s>Or Alive</s> warrant put on their heads. {{storylink|Elegant Chaos Part 1: All Our Parlous Yesterdays|All Our Parlous Yesterdays}}

Upon assuming office, Sentinel Prime operated out of the [[Security Services Headquarters]] in [[Kaon (polity)|Kaon]], generally regarded as "the worst place on Cybertron." By this point Sentinel had developed great disdain for government authority, irritated that they kept telling him how to ''do things'' instead of just giving him what he asked for. {{storylink|Megatron Origin issue 1|Megatron Origin #1}} He would even claim he didn't get to set policy. {{storylink|Megatron Origin issue 3|Megatron Origin #3}} Years later, [[Whirl (G1)|Whirl]] would say Sentinel took the bad Senate and made it get worse. {{storylink|The Last Autobot}} He worked alongside [[Prowl (G1)/2005 IDW continuity|Prowl]], his [[Second-in-command|lieutenant]], and didn't seem that keen on him either, viewing Prowl's methodical approach as anathema to his more straightforward and brutal tactics. {{storylink|Megatron Origin issue 1|Megatron Origin #1}} {{storylink|Last Light (issue)|Last Light}} Sentinel also formed an [[Elite Guard]] for all the important work he wanted done and not known about, like secretly capturing a spark hot spot so it could be experimented on and the [[Functionist Council]] couldn't use it. {{storylink|Elegant Chaos Part 1: All Our Parlous Yesterdays|All Our Parlous Yesterdays}} During this time, Sentinel and Prowl briefly visited [[Moonbase Two|Luna 2]] to check up on the progress of a new [[energon]] mine supervised by [[Soundwave (G1)/2005 IDW continuity|Soundwave]]. {{storylink|The Falling, Chapter 2: Another Mine|Another Mine}}

[[File:MegatronOrigin1 Sentinel face.jpg|upright=1.5|left|thumb|I am not a crook's head!]]

Sentinel's Elite Guard clashed with Orion Pax's outlaws over the hot spot and, well, turned out not to be that elite: Sentinel hired bruisers, not people with brains. He lost the hot spot to Pax. {{storylink|Elegant Chaos Part 1: All Our Parlous Yesterdays|All Our Parlous Yesterdays}}
At some point, Sentinel did something later remembered as "lay[ing] claim to a populated world". {{storylink|New Worlds Order}}

When Senator [[Decimus]] was badly injured in a riot, Sentinel ordered Prowl to handle the situation as he didn't "have the struts to deal with another whining senator": if only they gave him "what I need"! {{storylink|Megatron Origin issue 1|Megatron Origin #1}} After a surge in illegal [[Gladiatorial combat|gladiatorial bloodsports]] where [[Megatron (G1)/2005 IDW continuity|Megatron's]] rose to prominence, he personally took charge of the investigation from Prowl, ordered tactical recon teams ("Panorama") to watch eight potential venues and intelligence officers to watch ''everything'', and a core strike team ("Hammer") to hit Megatron's "cult" when the venue was identified. Officers [[Bumper (G1)|Bumper]] and [[Fastback (G1)|Fastback]] did indeed find a venue but unfortunately, both were murdered before they could report in. {{storylink|Megatron Origin issue 2|Megatron Origin #2}}

[[File:MegatronOrigin4-SentinelPrime Apexarmor.jpg|upright=1.1|thumb|I remember my body. Flabby, pasty-skinned, riddled with phlebitis. A good Republican body. God, how I loved it.]]

Sentinel Prime vowed not to let their deaths be in vain, and at their funeral, the Autobot leader urged others to let their deaths be a call to arms. {{storylink|Megatron Origin issue 3}} In private, he told his closest minions that he planned to find a Titan and unleash it on the Decepticons! {{storylink|Ten to Midnight}} Eventually, after Senator Decimus was kidnapped by the [[Seeker (body-type)|Seekers]] at Megatron's orders, Sentinel Prime led a raid on Megatron's base. They captured Megatron and most of the others, but were forced to free Soundwave per Senate directive, much to Prime's frustration. {{storylink|Megatron Origin issue 3|Megatron Origin #3}} Unfortunately for Sentinel, this had been Megatron's plan all along and a "defecting" Starscream released all the prisoners in the Security Services' HQ!

As chaos broke out across Kaon, Sentinel Prime held the line until he decided to take things to the next level. Thus, Prime returned with his massive "[[Apex Armor (G1)|Apex]]" mode, a battle-armor/super-powerful/more-firepower-than-god mode. {{storylink|Megatron Origin issue 4|Megatron Origin #4}} His ensuing duel with Megatron was watched from behind the scenes by Soundwave and Shockwave. {{storylink|Soundwaves (issue)|Soundwaves}} The additional firepower didn't make much of a difference, seeing as Megatron tore into it and pulled Prime off a cliff. Sentinel was defeated by Megatron. Afterwards, the former Prime's barely functional body was dumped into the middle of the Autobot forces. Prowl ordered a retreat. We would too.

The next morning, Megatron discussed his next moves with Soundwave... sitting on a throne made out of Prime's Apex Armor. {{storylink|Megatron Origin issue 4|Megatron Origin #4}} Rumours spread that Sentinel had survived his battle until the replacement Senate put out footage of the body being retrieved. Sentinel's body was subsequently laid to rest, and received a state funeral at the [[Primal Basilica]] in which grieving crowds lined the streets. With his first body damaged beyond repair, Infinitus secretly abandoned his old body and went into hiding beneath Kaon. Unable to explain this baffling "mutilation", Prowl claimed that Sentinel's body had been desecrated by Decepticons, who had stolen Sentinel's head. Megatron was left irritated people would blame him for that. {{storylink|The Last Autobot}} Sentinel Prime was immediately succeeded by [[Zeta Prime (G1)|Zeta Prime]], {{storylink|Spotlight: Blurr}} and, in spite of his many issues, Sentinel's last stand against Megatron meant that the Autobots remembered him as a hero, his last deed outweighing his many flaws. {{storylink|The Last Autobot}}

[[File:LastLight-Infinitusescapes.jpg|upright=1.5|left|thumb|Time for Dicky to get tricky!]]

From his hiding spot, Infinitus worked to build a new body for himself. This took longer than he expected; according to Infinitus, he was "subconsciously attuning" himself to the [[spark]] frequencies of the Titans, and slipped in and out of consciousness over many millions of years. {{storylink|Last Light (issue)|Last Light}}

Shortly before the [[Dead Universe]] invasion in 2006, Optimus Prime would recall Sentinel Prime as he ruminated on the supposed infallibility of a Prime versus the depressing reality. {{storylink|Spotlight: Optimus Prime}}

Following the end of the war in 2012, Prowl recalled Sentinel's militarism as part of the lineage of 'false Primes' and their failings, expressing that while the Decepticons may have had noble intentions back then, they were long lost by the modern era. {{storylink|Dinobot Hunt (IDW)|Dinobot Hunt}} [[Nova Prime]] briefly took on the appearance of Sentinel Prime as he battled Optimus within the [[Dead Universe]]. {{storylink|Finis Temporis: Dark Cybertron Chapter 9|Finis Temporis}}

[[File:TitansReturn Infinitus Sentinel.jpg|upright=1.1|thumb|NIXON'S BAAAAACK!]]

In 2016, an irate Starscream—now running Cybertron—was left spitting teeth at the idea anyone might give Optimus a pass for annexing Earth. He compared the action to Sentinel, saying he'd been the last Prime to lay claim to a populated world. {{storylink|New Worlds Order}} When the [[Council of Worlds]] next convened, Starscream cited Sentinel Prime as one in a series of increasingly corrupt Primes in an attempt to discredit Optimus's recent annexation of [[Earth]]. {{storylink|All Hail Optimus Part 3: The Medium and the Message|The Medium and the Message}} The crewmembers on the ''[[Lost Light]]'' discussed Sentinel frankly as a dangerous ideologue with [[Brainstorm (G1)/2005 IDW continuity|Brainstorm]] calling him the first Decepticon. Since everyone usually referred to Sentinel Prime in heroic terms, [[Tailgate (G1)|Tailgate]] was left confused; Chromedome explained that he'd "lived badly but died well".

Meanwhile, the emergence of [[Metrotitan (G1)|Metrotitan]] on [[Earth]] had prompted the creation of [[Autobot City (G1)|Autobot City]], accompanied an energy broadcast immortalizing the deeds of Optimus Prime. This burst awoke Sentinel Prime, still hiding beneath Kaon. The former leader viewed Metrotitan's transmission... only to be disgusted by the sight of Autobots fraternizing with Decepticons and the "malformed" colonists from the [[Titan (group)|Titan]] colonies—signs of ''compromise'' that he could not abide. Sentinel activated his new body, then headed to the Decepticon ghetto outside of [[Metroplex (G1)|Metroplex]], vowing to purge his planet of "inferiors" {{storylink|The Last Autobot}} Trouncing [[Ironhide (G1)/2005 IDW continuity|Ironhide]]'s security forces, Sentinel opened fire indiscriminately and killed 23 individuals before attacking Starscream with a [[spark disruptor]]. {{storylink|Ten to Midnight}} {{storylink|The Last Autobot}} [[Windblade (G1)|Windblade]] managed to save Starscream's life by taking the weapon into her own Spark chamber, but the two were unable to stop Sentinel from bridging to Earth. After arriving outside Autobot City, he took down [[Aileron]] and destroyed the [[Space bridge|spacebridge]] behind him. Sentinel took a moment to appreciate Optimus Prime's imperialistic spirit... a moment that was cut short when Infinitus detached himself from his host body, vowing to burn down everything that his successor had created. {{storylink|The Last Autobot}}

[[File:WhiteLight-bodyjackinginfinitus.jpg|upright=1.5|thumb|left|"Now look here, you drugged-out Communist. I paid for this body and I'd no sooner return it than I would my little cocker spaniel dog, Checkers!"]]

His first obstacle was Alpha Trion, who he sneered at for only ever talking and ''doing'' nothing during his reign. In a brief fight, Sentinel cut Trion's head off and took control of his alternate mode as a personal plane, while Sentinel's headless body stayed behind to engage the Autobots as a distraction. Wearing Trion's body, Sentinel retrieved his fellow Titan Master [[Sovereign]], who had been under a deep-cover identity as the human [[G.B. Blackrock|Garrison Blackrock]], and flew him back to Metrotitan to be fully transformed. After reuniting with his main body, he had Sovereign warp them, Soundwave, and Optimus Prime away. {{storylink|White Light}}

The quartet traveled to the remains of the planet [[Prion (planet)|Prion]], abandoned by [[Micronus Prime]] to die with the [[Mini-Con]]s he had watched over. Sentinel explained his history to Optimus, revealed that the identity of "Sentinel" had always been a lie to conceal his true heritage as a Titan Master, and, with Onyx's return imminent, offered his successor a chance to join him and Sovereign in their new crusade. When Soundwave insulted his Primehood, Infinitus had Sovereign impale him using Alpha Trion's body before Optimus then tackled Sentinel into Sovereign, freeing Soundwave and giving the Decepticon enough time to reawaken Sovereign's "Blackrock" persona. Undeterred, Sentinel simply grabbed Sovereign and fled through Prion's spacebridge vowing to destroy the current Cybertron. {{storylink|White Heat}}

[[File:TenToMidnight-twovstwo.jpg|thumb|right|250px|"I've become bitter, and, let's face it, crazy over the years. And once I'm swept into office, I'll sell our children's organs to zoos for meat, and I'll go into people's houses at night and wreck up the place!"]]

The Titan Master duo arrived on [[Moonbase One|Luna 1]], where Sentinel intended to finally put his old contingency plan into play by first reactivating the hordes of dead Titans that littered the moon's surface. Along the way, Sentinel cut down the Autobot [[Outrigger]] and ordered Sovereign to devour his spark to power his own system; when Sovereign refused and Outrigger escaped, Sentinel hardwired him into a Titan's brain module and had it make a beeline for the moon's [[Planetary engine|thruster]]s. [[Red Alert (G1)|Red Alert]] tried to stand up to Sentinel, but the evil Prime revealed that Red Alert had been one of his many sleeper agents, and promptly triggered the mental conditioning that led him to shoot Prowl, leaving only [[Fortress Maximus (G1)|Fortress Maximus]] and [[Cerebros (G1)|Cerebros]] to stand up to Sentinel. {{storylink|Ten to Midnight}}

As Red Alert battled Fortress Maximus, Sentinel gloated to Cerebros and revealed the full scope of his plan: using the [[quantum foam]] from Luna 1's engines, he would supercharge a spacebridge to Cybertron, allowing a horde of reanimated Titan corpses to travel through the portal and destroy everything on Cybertron, leaving a blank slate on which he could rebuild his "perfect" Autobot society. But before he could deliver the final blow, Prowl smashed a [[Mobile Autobot Repair Bay|M.A.R.B.]] over his head; Fortress Maximus commandeered one of the many Titans to fend off the [[zombie]] horde, holding off as many of Sentinel's Titans as he could, while Prowl and Cerebros confronted Sentinel himself. Sentinel quickly dispatched the pair and ordered Red Alert to shoot Prowl in the back of the head—but Red Alert had already broken Sentinel's conditioning, and shot his Titan Master self off of his larger body. Sentinel was quick to reassert a measure of control over Red Alert, nearly forcing him to blast his own head off before [[Beak]] slammed into Sentinel, sending the Titan Master plummeting into one of the moon's thrusters where he unceremoniously perished. The spacebridge closed without his thoughts keeping it open; {{storylink|Last Light (issue)|Last Light}} although Fortress Maximus had not been able to prevent ''all'' of the Titans from making it through the bridge, the disruption meant that the Titans would materialize far away from Cybertron and ultimately took many weeks to finally arrive. {{storylink|Ping}}

===2006 IDW ''Beast Wars'' continuity===
Sentinel Prime died during the Great War, and Optimus Prime succeeded him. {{storylink|Transformers: Beast Wars Sourcebook|Beast Wars Sourcebook}}

===''Transformers vs. G.I. Joe''===
Among others, Sentinel Prime appeared to haunt Megatron through the [[Matrix of Leadership|Matrix]]. Sentinel in particular mocked the Decepticon's gladiatorial origins and the fact that he considered himself an emperor. Megatron, however, refused to break and continued with his plans. {{storylink|Transformers vs. G.I. Joe issue 12|Transformers vs. G.I. Joe #12}}

===''Titans Return'' marketing material===
[[File:PowerOfTheTitanMasters-sentinel.jpg|thumb|left|245px|I'm meeting you halfway, you stupid hippies!]]
Sentinel Prime unexpectedly returned after unspecified circumstances. He proved himself to be an unpredictable force, with his own plans to return Cybertron to its former glory.<ref name="TRTF">''Titans Return'' ''[[Titans Return (toyline)#Summer convention exclusives|Titan Force]] 3-pack'' bio material/instructions.</ref> When the [[Titan Master]]s reemerged into the modern Autobot-Decepticon war, Sentinel Prime was partnered with the Titan Master [[Infinitus]], whose ability to slow time allowed Sentinel to unleash precision attacks even in the middle of raging battles. {{storylink|#Generations|''Titans Return'' Infinitus/Sentinel Prime toy bio}}

When [[Scourge (G1)|Scourge]] and [[Squeezeplay (G1)|Crashbash]] attacked [[Velocitron]] during the planet's biggest race, Sentinel Prime fought alongside [[Hardhead (G1)|Hardhead]] and Optimus Prime to repel the invaders, defending [[Haywire|Hyperfire]] from Decepticon abduction. {{storylink|Titans Return: The Power of the Titan Masters}}

When [[Fortress Maximus (G1)|Fortress Maximus]] returned to full size and unleashed his power on the universe, Sentinel Prime went rogue and sought to control him by using a loyal Titan Master. His plans for domination put him in conflict with [[Brainstorm (G1)|Brainstorm]], [[Arcana|Teslor]], and [[Windblade (G1)|Windblade]].<ref name="TRTF"/>

===''Prime Wars Trilogy'' cartoons===
When the [[Mistress of Flame]] visited the [[Primal Basilica]], she invoked the names of the [[Thirteen]] [[Prime (rank)|Primes]] in prayer, calling for the wisdom of Sentinel Prime. {{storylink|Overlord and Emissary}}
{{--}}

===2019 IDW continuity===
{{first|[[The World In Your Eyes Part Three|''Transformers'' #3]] (mentioned); [[The Cracks Beneath Your Feet Part Four|''Transformers'' #10]] (full appearance)}}

[[File:WannabeePart2-Sentinel.jpg|thumb|right|upright=1.65|"This is incredible. It’s God’s most wondrous miracle."<br> "Sir, I think your wife wants to hold the baby."<br> "My wife?? Where? WHERE??" ''(Runs off)'']]

During the reign of [[Nominus Prime]], Sentinel was called in into investigate an unprecedented accidental forging at the site of [[Iacon (polity)|Iacon]]'s [[Pyramid (Cybertron)|Pyramid]], and was thus the first 'bot encountered by the newly forged [[Cliffjumper (G1)|Cliffjumper]]. {{storylink|Wannabee, Part 2}} Eventually, Sentinel would himself rise to the rank of Prime after Nominus Prime surrendered leadership of the Autobots; accepting the Matrix of Leadership, Sentinel Prime took over as the new First Senator. {{storylink|Rise of the Decepticons: All Fall Down|All Fall Down}} In his new role, the Prime adhered to his predecessor's doctrine: his party continued to uphold the historic [[Nominus Edict]] that limited Cybertronian expansionism, {{storylink|The Cracks Beneath Your Feet Part Four}} supported Nominus's decision to keep the [[Great General]] [[Pyra Magna]] indefinitely imprisoned, {{storylink|Rise of the Decepticons: All Fall Down|All Fall Down}} and restrict the forging of new [[Titan (group)|Titan]]s, {{storylink|War World: Titans|Titans}} as well as abolishing the traditional sport of [[gladiatorial combat]]. {{storylink|Transformers Valentine's Day Special}} Before long, Sentinel had developed a reputation for a straightforward and unsubtle approach to diplomacy, {{storylink|Nautica: Home}} although the gravitas that his force of personality exerted over the [[Senate]] was indisputable: without his presence, the Senate would be paralyzed by indecision and infighting. {{storylink|The Cracks Beneath Your Feet Part Four}} {{storylink|Wannabee, Part 2}} To keep the existence of hidden-away Titansparks under the Pyramid a secret, Sentinel bribed [[Starscream (G1)|Starscream]] with the position of Head of Intelligence. {{storylink|War World: Titans|Titans}}

[[File:NauticaHome-SentinelPrime.jpg|thumb|left|upright=1.2|""Demand?" Who are you to demand anything? I run this town! You're just a bunch of low income nobodies!"]]

Just before the outbreak of the [[Great War (G1)|Great War]], Sentinel Prime and his inner retinue conducted a goodwill tour of Cybertron's various [[Cybertronian colonies|colony worlds]] aboard the [[Titan (group)|Titan]] [[Lodestar (Titan)|Lodestar]], unaware of mounting political tensions on Cybertron between Senator [[Optimus Prime (G1)|Orion Pax]]'s Autobots and [[Megatron (G1)|Megatron]]'s [[Decepticon|Ascenticons]]. {{storylink|The World In Your Eyes Part Three}} With Sentinel Prime offworld, Orion opted to take command of the Senate in between filling in for Sentinel's other duties, such as welcoming newly forged Transformers like [[Gauge]] into the world, {{storylink|The World In Your Eyes Part Four}} while instructing [[Ironhide (G1)|Ironhide]] to keep Sentinel Prime informed. {{storylink|The World In Your Eyes Part Three}}

The situation quickly escalated beyond Pax's ability to control the Ascenticons, and upon learning of both [[Brainstorm (G1)|Brainstorm]] and [[Rubble]]'s murders Sentinel Prime promptly cut his tour short. At the colony world of [[Hexagon]], Sentinel informed his cadre of specialists and diplomats that they would set course for Cybertron immediately after all visiting aliens had departed. As Lodestar prepared to set course for home, [[Nautica (G1)|Nautica]] informed him that she and [[Road Rage (G1)|Road Rage]] had foiled a [[Thraal]] plot to destroy their Titan in an attempt to intimidate Cybertron into surrendering their [[A'ovan]] refugees. Unwilling to import such troubles into Cybertronian society, Sentinel ordered Nautica to be silent on this incident and allow it to be handled quietly. {{storylink|Nautica: Home}}

Once Lodestar touched down on Cybertron, Sentinel dismissed Ironhide and made his way directly to the Senate. {{storylink|The Cracks Beneath Your Feet Part Four}} When he arrived, [[Chromia (G1)|Chromia]] briefed him on the situation, specifically the events concerning [[Barricade (IDW)|Barricade]], who had sought asylum at [[Decepticon Headquarters (G1 Cybertron)|Ascenticon Headquarters]]. Though allowing Orion Pax to try and reason with [[Megatron (G1)|Megatron]], he only gave him until sundown to retrieve Barricade, whereupon he would give Chromia ''carte blanche'' to get to the rogue. {{storylink|The Cracks Beneath Your Feet Part Five}} Sentinel spent the next few days catching up on what had been going on while he was away, which began to rapidly chip away at what little patience he had. The last straw came when Senator [[Soundwave (G1)|Soundwave]] delivered the Ascenticons' demand that, in light of the situation, there be an immediate election. Sentinel emphatically said "no" and subsequently ordered literally every [[Security Operations]] agent out into the field to root out [[The Rise]]. {{storylink|The Change In Your Nature Part One}}

[[File:TheChangeInYourNaturePart3-SentinelPrime.jpg|thumb|right|upright=1.7|"I propose that I use what's left of the town treasury to move to a more prosperous town and run for mayor. And, er, once elected, I will send for the rest of you."]]

Flanked by Orion, Sentinel made a public address where he condemned the Ascenticons and their empty promises. When Pax and Chromia later brought Sentinel an update on the situation, the First Senator allowed the rules of the [[Nominus Edict]] to be bent for the purposes of Security Operations' mission but also made several other changes to their normal operations while stressing success over a zero-fatality rate, deputizing [[Colonial Security]] chiefs [[Firestar (G1)|Novastar]] and [[Hound (G1)|Hound]] to organize proactive response teams. {{storylink|The Change In Your Nature Part Three}} To stamp out the Ascenticons before they could do any more damage, Sentinel also planned to arrest Senator Soundwave at an upcoming debate in a sting operation, only for fellow senator [[Heretech]] to covertly forewarn Megatron of the plan. {{storylink|The Change In Your Nature Part Four}}

[[File:RiseOfTheDecepticonsAllFallDown SentinelRejectsOrion.jpg|thumb|left|upright=1.3|"Uh, election in November, election in November."<br>"What? ''Again?!'' This stupid country..."]]
Following a major terrorist attack on Cybertron and the destruction of the [[Tether]], Sentinel and Orion met to assess the scope and scale of the damage. Although Orion urged caution and restraint—rebuilding and reassessing rather than going after the Ascenticons—Sentinel would not be dissuaded from his course of action, and Orion's suggestion that Pyra Magna be released from prison to coordinate an anti-Ascenticon crackdown eroded Sentinel's patience to nothing. Storming from the room, Sentinel shouted that he would pass the Matrix to [[Ultra Magnus (G1)|Ultra Magnus]] when he stepped down, ''not'' Orion. {{storylink|Rise of the Decepticons: All Fall Down|All Fall Down}} When inflaming societal tensions led to protest marches, Sentinel ordered Ironhide to clear out the crowd. {{storylink|Rise of the Decepticons: Swindle's|Swindle's}}

When [[Quake (G1)|Quake]] had finally been detained, Sentinel arranged for the murderer to be publicly marched directly to the [[Senate]] building in the hopes that the spectacle would discourage the Ascenticons and their supporters. However, his unwise pageantry only led to a coordinated strike that ended with [[Bumblebee (G1)|Bumblebee]] murdering the escaped Quake before he could be tried. {{storylink|Rise of the Decepticons: Prisoners|Prisoners}} Finally, Sentinel convened an emergency session of the Senate without the Ascenticons, and coined the name "[[Decepticon]]s" as a way to condemn Megatron's underhanded tactics. He didn't get far into this speech before Megatron and his retinue barged into the Senate floor; while [[Strika (BM)|Strika]] restrained Sentinel, Megatron made his own speech that began with him reclaiming Sentinel's off-the-cuff insult and ended with his Decepticon troopers taking over the Senate. {{storylink|Rise of the Decepticons: We Have Deceived You|We Have Deceived You}}

[[File:WarWorldPrime-SentinelDies.jpg|thumb|right|300px|"Oh, I bet I'll get blamed for this..."]]
While Megatron kept most of his prisoners on the Senate floor itself, he had Sentinel and Orion moved to a high-security prison wing, and took a moment to gloat in front of the imprisoned First Senator. Despite Sentinel's final warning—that if Megatron restarted the cycle of colonization and expansion that had defined Cybertron's past, other races would surely fight back against Cybertron—Megatron was more interested in the Matrix he carried. [[Ironhide (G1)|Ironhide]] and the [[Senate Guard]] eventually broke into the Senate building and freed Sentinel, but stopped their leader from going to personally settle his score with Megatron. After escaping to the Autobot fallback point, Sentinel instead decided to find a relay tower and broadcast a message that Megatron had not yet won—but as he transformed and flew off, he recklessly ignored the fact that the Autobot resistance didn't have any fliers to cover his departure. Sure enough, Megatron ordered the [[Rainmaker]]s to bring him back, and the three knocked him out of the sky and sent him crashing into a nearby [[The Slaarg & Turbofox|bar]]. While Sentinel easily pounded [[Ion Storm]] into a nearby wall, [[Acid Storm (G1)|Acid Storm]]'s corrosive barrage weakened him and [[Nova Storm (G1)|Nova Storm]] sliced him in half. Chromia and Orion arrived too late to save him. {{storylink|War World: Prime|Prime}} Deducing Starscream's betrayal, to protect the Titansparks from the Decepticons, {{storylink|War World: Titans|Titans}} Sentinel, with his last words, told Orion to warn [[Perceptor (G1)|Perceptor]], kill Starscream, and pass his Matrix on to Ultra Magnus before he succumbed to his wounds and died. After taking the Matrix, Orion Pax glimpsed Sentinel Prime's spirit among the many other Cybertronian leaders who had carried the artifact before accepting the mantle of ''Optimus'' Prime. {{storylink|War World: Prime|Prime}}

Laying Sentinel Prime's tattered body to rest, Optimus and Ironhide reflected on his last words and their meaning. Despite their past differences, Optimus Prime respectfully praised Sentinel for rising to meet the demands of leadership the Matrix placed on him and hoped to do the same. {{storylink|War World: Awakenings|Awakenings}}

{{--}}

==Games==
===''Transformers Legends''===
[[File:TFLegends-SentinelPrime.jpg|thumb|upright=1.6|The last card here's a little redundant on this page if you scroll back up a ways.]]
Following an uprising of working-class robots, Sentinel Prime sent Alpha Trion to investigate the gladiatorial pit fights in Kaon, and the emergence of the Decepticon movement. Alpha Trion uncovered Senator Ratbat's involvement in the whole affair, and reported his findings to Sentinel Prime. {{storylink|Megatron Origins}}

As [[Megatron (G1)|Megatron]]'s forces made their way to activate [[Cybertron (planet)|Cybertron]]'s [[planetary engine]]s in order to wipe out the Autobots, Sentinel Prime went to meet with the Decepticon leader in [[Tyrest]], believing Megatron could be reasoned with. Instead Megatron ambushed Sentinel Prime's group and slew the Prime. Sadly for Megatron, Sentinel was not carrying the coveted [[Matrix of Leadership]], having sensibly left it behind. {{storylink|The War Within}}
{{-}}

===''Transformers Online'' (2017 video game)===
During the Cybertronian Civil War, Sentinel Prime was killed. Prior to his destruction, he bestowed the Matrix of Leadership to Optimus Prime, who became the new leader of the Autobots. {{storylink|Transformers Online (2017 video game)|Transformers Online}} <ref>[http://tfol.qq.com/act/a20160726data/hero9.shtml G1 Optimus Prime on the Transformers Online website]</ref>
{{-}}

==Toys==
===''Titans Return''===
[[File:TitansReturntoy-SentinelPrime.jpg|thumb|upright=1.6| Mr. Trump. Or "Pmurt", as I like to call you, in backwards spelling, 'cause you would hurt this country definitely.]]
*'''Autobot Infinitus & Sentinel Prime''' (Voyager Class, [[2016]])
**''Accessories:'' 2 guns, Infinitus Titan Master
:Sentinel Prime is part of the first wave of ''[[Titans Return (toyline)|Titans Return]]'' Voyager Class toys. He transforms from robot to shuttle to battle tank-which-looks-a-lot-like-a-train. Both vehicle modes make use of lots of flip-out panels to fill in his vehicle mode, leaving very little robo-kibble visible. Sentinel takes design cues from both Generation 1 [[Astrotrain (G1)|Astrotrain]] and [[Alex Milne]]'s IDW Sentinel Prime, whilst Infinitus's robot mode is entirely the Sentinel design.

:His [[Titan Master]] partner [[Infinitus#Toys|Infinitus]] transforms into his head (but any [[Titan Master]]-class figure is compatible), and he features spring-loaded pylons that pop out of his shoulders on either side of his head to "bulk up" his noggin, like all ''Titans Return'' Voyager-class figures. Despite restricting the articulation for his neck, the pylons themselves are in an assembly which can be rotated for better range of motion. Sentinel can be transformed into his shuttle mode without removing his head, leaving it somewhat hidden on its backside.

:He includes two hand-held, non-firing blasters which can be combined to form a larger double-barreled weapon. The larger gun or the combined mode can be piloted by a Titan Master. Each weapon has multiple pegs which can be mounted on the wing struts, wing tips, knees, or shoulder slots. Sentinel himself can be piloted from a translucent yellow cabin between his rear stabilizers.

:The computer-generated promo art and additional stock photos for this figure is apparently inaccurate, depicting Sentinel with the ends of his train mode for feet, while his instructions use the nose cone portion of the shuttle mode. The train engine ends ''can'' be used as feet, but they sit at an awkward angle that makes it hard for Sentinel to stand upright. He also appears to be a darker, less saturated orange than the final product.

:Sentinel also comes with a collector card based on his packaging art.

:This mold was also made into ''Titans Return'' [[Astrotrain (G1)/toys#Titans Return|Astrotrain]] and served as the model for [[Omega Sentinel (Energon)|Omega Sentinel]] in the [[Primus Vanguard]].
::*''[http://www.tfu.info/2016/Autobot/TRSentinelPrime/sentinelprime.htm More information on ''Titans Return'' Sentinel Prime at TFU.info]''

{{-}}{{anchor|SDCC2016}}{{anchor|TitanForce}}
[[File:TF-Generations-Titans-Return-Titan-Force-Sentinel-Prime.jpg|upright=1.66|thumb|Now with extra BURNING JUSTICE!]]
*'''Titan Force''' (Multi-pack, [[July 21]], 2016)
**''Accessories:'' 2 Guns, Infinitus Titan Master

:This recolored version of Sentinel Prime with translucent orange parts was only available in a [[giftset]] together with "Titan Force" redecoes of [[Brainstorm (G1)#Titans Return|Brainstorm]] and [[Windblade (G1)#Titans Return|Windblade]], each with unique decoration. Rather than being marked as an Autobot, he instead bears the symbol of the Security Forces that his troops wore in the ''[[The Transformers: Megatron Origin|Megatron Origin]]'' comic.

:In the United States, this set was [[exclusive]] to the [[Hasbro Toy Shop]] website and the Hasbro Toy Shop booth at [[San Diego Comic-Con]] 2016. In the United Kingdom, it was exclusive to the A1 Toys website and their booth at London Film & Comic Con 2016 (with Brainstorm renamed into "Charon" for [[trademark]] reasons); in China, it was exclusive to Cybertron Con Shanghai; in Hong Kong, it was exclusive to Animation-Comic-Game 2016; and in Canada, it was exclusive to the HasbroStore booth at Fan Expo 2016.

:This toy is used for [[Red Sentinel Prime]] in the ''[[Generations Selects Special Comic|Generations Selects]]'' comics.
{{--}}

==Notes==
*In an impressive case of [[size changing]], U-Haul Robot's head alone forms the ''entire'' driver's section of the truck cab!
*In a few instances throughout the third season of the [[The Transformers (cartoon)|Generation 1 animated series]], the [[Constructicon (G1)|Constructicon]] [[Long Haul (G1)|Long Haul]] appears in the U-Haul Robot's color scheme. Guess [[AKOM]] got their "Hauls" mixed up!
*The retelling of [[Unicron]]'s origin in the UK comics included a brief glimpse of a dying Matrix bearer passing the [[Matrix of Leadership]] to Optimus Prime. However, as he is unnamed, the only way we can presume this being is Sentinel Prime is because, as we are told later, Sentinel Prime was the leader before Optimus. Fun fact: "[[State Games]]" calling Optimus Prime "Optimus Prime" means Sentinel does this pre-war!
*Sentinel's 2007 IDW design was based on his first (and otherwise only prior) appearance in the 1988 Marvel comics panel shown above. The resemblance is a little more obvious in ''[[Spotlight: Optimus Prime]]'' than it is in his more stylized appearance in ''Megatron Origin'', but his yellow-red-and-orange armor, crested helm, and the row of three small "windows" on his chest are all derived from his Marvel look. IDW's Sentinel is also very heavily armed, not unlike the description of the character given by the ''Hardwired'' novel.
*Sentinel Prime didn't receive a proper toy until 2016, but he did come close previously. As revealed in the [[Transformers Collectors' Club]] roundtable panel at [[BotCon 2007]], the original concept for the convention-[[exclusive]] [[redeco]] of Deluxe Class [[Cybertron Defense Team (Cybertron)|Cybertron Defense]] [[Hot Shot (Armada)/toys#CyCDF|Hot Shot]] was Sentinel Prime. The mold DOES bear a decent resemblance to his IDW appearance, but in the end it was decided that [[Springer (G1)/toys#Timelines|Springer]] was a better choice for the mold (and likely for the [[Hasbro Transformers Collectors' Club (magazine)|ongoing club comic]] story).
*The resurrected Sentinel in the 2005-2018 IDW continuity appears to be wearing modular, black armor over his toy design, rather than having the toy design itself.
*According to [[ABN]] in [[Recordicons issue 9|''Recordicons'' #9]], Vector Prime "always lies about Five Faces of Darkness". If true, this would mean that the guy from Five Faces isn't necessarily Sentinel Prime; we're keeping this page as-is because there's no objective evidence either way, and Sentinel Prime is more convenient as a page title than "U-Haul Robot".

===Foreign names===
*''Japanese:'' '''Sentinel Prime''' (センチネル・プライム ''Senchineru Puraimu'')

==References==
{{reflist}}

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[[Category:Autobot leaders]]
[[Category:Dreamwave Generation 1 Autobots]]
[[Category:Generation 1 Autobots]]
[[Category:Gladiators]]
[[Category:IDW (2005) Autobots]]
[[Category:IDW (2019) Autobots]]
[[Category:Legends Autobots]]
[[Category:Matrix bearers]]
[[Category:Primes]]
[[Category:Titans Return Autobots]]
[[Category:Wings Universe Autobots]]

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Sentinel Prime (G1)