Nickname: Grimmy

Allegiance: Autobot

Sub-Group: Dinobot

Function: Dinobot Commander

First Comic Appearance: Transformers #4

"Among the winners, there is no room for the weak."

Profile: The most fearsome and powerful of the Dinobots, Grimlock would gladly usurp Optimus Prime's role as Autobot Commander if he thought he could get away with it. For now, he's happy to tear into the enemy Decepticons whenever he can and wait for a more opportune moment to try for the leadership. He can be cold and merciless, and shows contempt for those he views as weak, such as humans and even some fellow Autobots. But he is a valiant warrior and his actions command respect from all who are witness to them, both friend and foe.

Abilities: Grimlock's strength is second only to Optimus Prime's, and even that is arguable. In Dinobot mode he can use his powerful jaws to snap in two virtually anything that comes between them- from a 4-foot diameter steel cable to a Decepticon leg. In Autobot mode he wields an energo-sword, which can slice a 2-foot thick concrete wall with one sweep of its crackling blade. He also uses a double-barreled self-propelled rocket launcher.

Weaknesses: Other than arrogance and lack of speed, Grimlock has no significant weaknesses.