Characters / Transformers: Robots in Disguise

This is the character page for the characters who appear in the anime Transformers: Robots in Disguise.

For the characters from the 2015 cartoon of the same name, see Transformers: Robots in Disguise.

For the characters from the IDW comic with a similar name, see The Transformers: Robots in Disguise.

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Optimus Prime

Voiced by: Neil Kaplan (English), Satoshi Hashimoto (Japanese)

The leader of the Autobots.
  • Badass: He's Optimus Prime, this is a given.
  • Badass Baritone: Neil Kaplan makes a very good Peter Cullen impression.
  • Beware the Nice Ones: It's amazing how someone who prefers to solve things through diplomacy and understanding can be so dangerous in combat.
  • Big Good: Leader of the Autobots and all that.
  • The Captain
  • Catch Phrase: Like any incarnation of Optimus Prime, "Autobots, transform and roll out!".
  • Gentle Giant
  • The Hero: The main character, leader of the Autobots and the one with the most serious dedication at stopping Megatron.
  • My Greatest Failure: He feels terrible about not being able to save the Decepticons from Megatron's Brain Washing,
  • Nice Guy
  • One-Man Army: One of the few Autobots who can fight Megatron without combining with anyone else.
  • Papa Wolf: Don't mess with Koji and the Autobots if you know what's good for you.
  • Parental Substitute: To Koji, while his dad was the prisoner of the Predacons.
  • Super Mode: Battle Mode, by combining with his trailer. Actually quite smart about it, as he will often use it immediately, rather than as a last-ditch.
    • Curiously, some episodes showed him in Battle Mode with no reason to be.
  • Wide-Eyed Idealist: Whole-heartedly believes the Decepticons have it within them to change.
  • Worthy Opponent: Scourge

Ultra Magnus

Voiced by: Kim Strauss (English), Takashi Matsuyama (Japanese)

One of the Autobots' greatest warriors. Although Ultra Magnus would remain a free agent for some time, he would still come to aid the Autobots whenever he felt they required assistance.


Voiced by: Sandy Fox (English), Chieko Higuchi (Japanese)

The Tactical Artificial Intelligence, sentient computer A.I. of the Autobot base. Responsible sending out certain bots for perticular missions.


Voiced by: Walter Lang (English)

An Autobot tow truck who is really strict about the "no parking" rules.


Voiced by: Michael Lindsay (English)

A competitive Autobot racing car.

Fortress Maximus

A colossal Autobot guardian hidden on Earth. Strong and durable, Fortress Maximus is an unstoppable force for good.

    Autobot Brothers 

Side Burn

Voiced by: Wally Wingert

One of the smaller Autobots who frequently chases after cute little sports cars.


Function: Cop

An Autobot officer, who always goes "by the book".


Function: Demolitions

The eldest of the Autobot Brothers, X-Brawn's rugged outdoorsman type, who loves driving off-road.

    Team Bullet Train 

Combined Form: Rail Racer

Railspike, Midnight Express, Rapid Run,

A combiner team made up trains.


Hot Shot






    Build Team 

Combined Form: Landfill

Function: Construction, Leader: Wedge, Members: Heavy Load, Grimlock, Hightower

A combiner team made up construction vehicles who to act as the space bridge repair crew.



The leader of the Predacons, and later the Decepticons and one of the most powerful Transformers in existence.
  • A Father to His Men: Believe it or not, albeit a gruff one. He will praise his warriors when they've done a good job.
    • Bad Boss: Where as Megatron genuinely respected his warriors, Galvatron had a tendency to suddenly try and kill his troops.
  • Ax-Crazy: The guy is soooo not mentally stable.
  • BFG: He's got quite a few in his collection.
  • Big Bad
  • Dragon-in-Chief: To the unseen Predacon Council.
  • Evil Laugh: The sheer creepiness his laugh is really noticeable when he's on a roll.
  • Evil Overlord
  • Large Ham
  • One-Man Army: Frequently portrayed as an unstoppable force on the battlefield.
  • Took a Level in Jerkass: As Galvatron, Scourge and the Decepticons were toast.
  • Purple Is Powerful: Megatron's color scheme.
  • That Man Is Dead: Boasted that he as Galvatron was a distinct entity from Megatron, which is rather silly considering the only apparent physical change was his paint job. However, his personality did get some severe adjustment.


Predacons: Sky-Byte, Slapper, Gas Skunk, Dark Scream

A quartet of Predacons who are powerful (though very stupid), all possessing savage(?) beast modes.



Scourge is arguably Megatron's second in command, leading the Decepticon forces


Mega-Octane, Ro-Tor, Armorhide, Rollbar, Movor

A group of Autobots turned Decepticon thanks to Megatron's meddling. They transform into combat vehicles and serve as Megatron's top generals.