Rocket Raccoon (Marvel's Guardians of the Galaxy)

Subject 89P13, better known as Rocket, is one of the main characters in Marvel's Guardians of the Galaxy. A genius-but-violent engineer, Rocket is an experiment subject from a Kree research facility on Halfworld. Now the inseparable partner of Groot, they both currently work as members of the team known as the Guardians of the Galaxy alongside Peter Quill, Gamora Zen-Whoberi and Drax.