Rocket Raccoon, originally known as 89P13, is a superhero and a major character in the Marvel Cinematic Universe. He is a thrill-seeking and wisecracking genetically altered, cybernetically enhanced raccoon who spent a majority of his life as a bounty hunter alongside his sentient tree companion, Groot. He was one of the founding members of the Guardians of the Galaxy, before he officially took over as the new leader of the team.