Giant Transformers Grimlock

Grimlock is a fictional character of the Transformers franchise. He is usually portrayed as the leader of the Dinobots, a subfaction of Autobots who can transform into dinosaurs. Grimlock is one of the physically strongest and most imposing Autobots, whether in his robot mode or his fire-breathing tyrannosaurus rex beast mode. As scary as he may seem, he's a good guy through and through, and happy to nurture and encourage the new generation of Cybertronians. He values strength, not just physical, but filling his charges with confidence and the spirit to find themselves.

Grimlock's most powerful and dangerous trait, however, is his anger. Able to channel his fury into a "rage mode" that makes him an unstoppable engine of destruction, he becomes a potential threat to even his closest allies when his optics go from blue to red. While he's usually able to control his anger, prolonged time in his dinosaur mode can disrupt his system, and the traumas he's suffered carry triggers, meaning those around him have to be careful not to set him off.