Grimlock is a bombastic Dinobot.
Fiction
Grimlock was locked in a stasis pod aboard the prison ship Alchemor, as one of Cybertron's most wanted. After the ship crashed on Earth a short confrontation with Underbite set him free and he got meet Bumblebee and his team of Autobots for the first time.
The meeting was cut short as he had unfinished business with Underbite. During the fight his arm was bitten and was thrown into a diner, but was ready for round 2. Underbite managed to get away, headed toward Crown City and Grimlock reveals that he wants to do good.
Gallery
Main Article: Grimlock/Gallery