'I'm Too Old': Marvel Star Says He's Officially Retired From His Beloved Guardians of the Galaxy Role as Rocket Raccoon

"I think it had a little bit of an effect on my physiology."

Marvel actor Sean Gunn has officially retired from his role playing Guardians of the Galaxy and Avengers hero Rocket Raccoon.

After five films and one holiday TV special, Gunn has said he's now "too old" to provide the performance capture for the beloved Rocket (whose voice is then dubbed …