Sam Marin is an American actor and animator. He voices Benson, Pops, and Muscle Man on Regular Show. Marin and J.G. Quintel became friends when they were in the same class at CalArts. He would help Quintel on his student films, which include The Naive Man from Lolliland and 2 in the AM PM, in which Marin voiced characters, which led to the start of his voice acting career. Marin later graduated from CalArts and got a job at the Walt Disney Animation Studios as an animator, where he worked for three years before Regular Show was greenlit, Marin then left Disney to work for Cartoon Network.