Facial hair
From MediaWiki

Some Transformers have facial features that resemble human facial hair. These features sometimes indicate age, but this is not always the case.
Transformers with facial hair
Generation 1

- A3/Alpha Trion
- The moustachioed bartender
- Detritus
- Early Decepticon leader
- Riker
- Galvatron (goatee)
- Scourge
- Sweeps
- Unicron
- The Venerable Ones
- Wreck-Gar
Beast Era
- Alpha Trion (Wreckers)
- Cheetor (Transmetal 2)
- Ramulus
- Silverbolt (Beast Machines)
- Tigatron
Unicron Trilogy

Shattered Glass

Movie
- The Fallen (braided beard)
- Jetfire (beard)
- Optimus Prime (goatee)
- Optimus Prime's Power-up mode (Long pointed goatee)
- Megatron's second body (mutton chops)
- Ratchet (walrus moustache)
- Roadbuster (goatee)
- Sentinel Prime (mustache)
- Wheelie (eyebrows and wiskers)
Animated

- Alpha Trion (Mustache and Beard)
- Blurr (Chin Stripe)
- Cyclonus (Chin Stripe)
- Dead End (Van Dyke)
- Dirt Boss (Mustache)
- Highbrow (Mustache)
- Huffer (Mustache)
- Jazz (Jawline, with Soul Patch attachment)
- Megatron (Chin Stripe)
- Mixmaster (The Lemmy)
- Scrapper (Sideburns)
- Tracks (Soul patch)
- Wheeljack (Jamie Hyneman's face)
- Wreck-Gar (Van Dyke)
- Motormaster (The Lemmy)
Hunt for the Decepticons

- The new lab assistant (goatee)
Prime
- Starscream (goatee)

