An adaptation of the character appears in the live - action Marvel Studios film Guardians of the Galaxy, portrayed by Sean Gunn via motion capture and voiced by Bradley Cooper. His real name in the film is 89P13. In addition to being genetically altered, Rocket is shown to have cybernetic implants within his body. He is only referred to as Rocket in the film, and asks "What 's a Raccoon? '' when told of his resemblance to the animal by Peter Quill. He serves as the team 's pilot and technical expert, providing the weapon that Quill uses against Ronan the Accuser in the final confrontation and piloting a Ravager ship in the final assault against Ronan 's fleet. Rocket also displays a talent for engineering jailbreaks. Having previously escaped from 22 prisons, he devises and executes a scheme to free his eventual teammates from a Nova Corps prison. Screenwriter Nicole Perlman has stated that early drafts of the film did not include the character due to "a little bit of a fear that he would come across as cartoonish because he 's a raccoon. '' Marvel Studios president Kevin Feige was persuaded to approve Rocket 's inclusion in the film. A live raccoon named "Oreo '' was used on set to help animators accurately capture the motion and behaviors of it for their CGI model. Director James Gunn took Oreo to the film 's European premiere.
who does the voice of rocket raccoon in guardians of the galaxy
Bradley Cooper