Grimlock is a member of the Autobots who values power and strength over everything else. His fellow Autobots wonder why he is even part of the team because he doesn't get along with them very well and his personality aligns better with the Decepticons. He also dislikes his leader Optimus Prime and would rather fight his way out of any situation instead of using his head to do the right thing. Grimlock is also the leader of the Transformer Dinobots which is a small strike squad of great power.