Citadel Secundus
- Citadel Secundus is a Titan from Rescue Bots Academy portion of the Aligned continuity family.

Citadel Secundus was a Titan, who colonized a planet during the Golden Age.
Fiction
Rescue Bots Academy cartoon
- Voice actor: Frank Cwiklik (English)
Several hundred thousand years ago, Citadel Secundus received a signal from the other Titans and was able to to pinpoint its source. The Lonely Titan At some point he ran out of power and ended up sitting on a planet in city mode until he was found by Scorch's Cube team. The team assumed Secundus's arena would be the perfect out-of-the-way place to train unobserved by the other Cube teams, however when they attached their enerjuicer to power the lights, they activated the arena's defenses and Secundus's distress beacon. The rescue recruits arrived in response to the distress beacon, and were able to use the enerjuicer to charge up Secundus's power core. Reactivated, Citadel Secundus transformed to robot mode and thanked his tiny rescuers. The Empty City
Continuing on his journey to find the source of the Titan signal, Secundus sent a message to Earth requesting someone join him for company. Heatwave arrived with the recruits, and Wedge volunteered to chat with the Titan, playing a game of "Stack Attack" together. After Wedge helped Secundus navigate out of a nebula, they found only empty space — the other Titans were long gone. Wedge invited Secundus to Earth, but Secundus decided to make one more attempt to try to find the Titans first. The Lonely Titan



