Muscle Man, whose real name is Mitch Sorrenstein, is a main character in Regular Show, the Cartoon Network series that ran from 2010 to 2017. Voiced by Sam Marin, the character is known for his deadpan jokes and for sudden high pitched screams that clash with his strongman appearance. Clips of those screams were lifted from episodes and shared on soundboards and in edits during the show's run, and they stayed popular after it ended because the sound alone signals panic, pain or comic outrage without needing any context.