Autobots

Grimlock

Incredibly strong and stubborn. Recognises only one commander — himself — though he fights alongside the Autobots.

Where he comes from

In the classic version, Earth: Wheeljack built the Dinobots based on Earth's dinosaurs. In other versions they are ancient Cybertronian warriors.

Story

Grimlock is the leader of the Dinobots, the strongest and most stubborn of the Autobots. He recognises only one commander — himself — and often charges into battle without a plan, trusting his jaws and strength.

Behind his simple speech hides a more complex character: Grimlock hates being ordered around, yet always protects the weak. In Age of Extinction Optimus wins his loyalty in a duel, and the Dinobots appear in live action for the first time.

Classifier: traits & abilities

Faction
Autobots (Dinobots)
Role
Dinobot leader, shock trooper
Alt-modes
Mechanical tyrannosaurus
Weapons
Energo-sword, rifle; jaws and fire breath in dinosaur mode
Abilities
Tremendous strength, armour, battle fury
Strengths
Power, fearlessness, loyalty to his own
Weaknesses
Stubbornness, insubordination, disregard for strategy
Personality
Proud, blunt, unexpectedly noble
Key relationships
Wheeljack (creator), Optimus Prime, the other Dinobots
First appearance
1985
Voice (G1)
Gregg Berger

Filmography

YearTitle
1985–1987The Transformers (G1)
1986The Transformers: The Movie
2007–2009Transformers: Animated
2014Age of Extinction
2015–2017Robots in Disguise
2017The Last Knight

Main screen appearances; not an exhaustive list.

Fan prequel: «The First Roar»

An original story by this site. Not part of the official canon.

When Wheeljack first switched Grimlock on, he didn't say a word. He just stood in the middle of the lab looking at his jaws, as if trying to work out what they were for.

Wheeljack told him about the Autobots, the war, orders. Grimlock stayed silent. Then Decepticons burst into the lab, and a tiny assistant robot ended up under the rubble.

Grimlock didn't wait for orders. He scattered the attackers, lifted a beam and gently pulled the little one out. Then he turned to Wheeljack and finally spoke: "Me not like orders. But me like those who need protecting." Wheeljack wrote in his log: "Cannot be commanded. Can be trusted."

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