Speaking candidly during a recent appearance on "The Brandon Davis Show," Gunn explained that his decision to step away from the role of Rocket’s physical double is rooted in the simple reality of aging and the unique physiological demands of the job. At 50 years old, Gunn noted that the days of contorting his body into the shape of a small animal for hours on end are behind him. The announcement marks the end of an era for a character that has become a cornerstone of the Marvel Cinematic Universe, and it sheds light on the often-overlooked physical sacrifices made by performers in the realm of high-tech digital filmmaking.
"Since I’ve turned 50 a couple of years ago, I am retired from playing Rocket," Gunn stated during the interview. While he clarified that he has not officially been asked to return for any upcoming projects, he was proactive in setting his own boundaries regarding the future of the character. "Not that they’ve called. But if they did, I don’t think that I could do the motion reference anymore for Rocket. I think I’m too old."
The role of Rocket Raccoon is a unique one in Hollywood, requiring a bifurcated performance that splits the character’s voice from his physical presence. While Academy Award nominee Bradley Cooper has provided the iconic, gravelly voice for Rocket since the character’s debut in 2014, it was Sean Gunn who spent months on set, crouched in the dirt, ensuring that the rest of the cast had a living, breathing presence to interact with. This "motion reference" work is vital for visual effects teams, who use Gunn’s movements and eye lines as a baseline for the digital animation, and for the other actors, who need a real human being to provide emotional cues and physical timing.
Gunn went into detail about why the role is so taxing, correcting common misconceptions about the nature of the physical strain. While many might assume that crawling on one’s hands and knees would primarily affect the joints of the legs, Gunn revealed that the issues are far more localized.
"Everyone thinks it’s my knees, but it’s really my feet and my ankles," he explained. The actor described the specialized posture he had to maintain to mimic the height and gait of a raccoon, a position he compared to a specific athletic stance. "I’m in a catcher’s crouch, and I’m pivoting a lot on my points of contact with the ground. I’m doing a lot of pivoting in my ankles and feet. And over the years, I think it had a little bit of an effect on my physiology."
