Muscle man

Muscle Man, whose real name is Mitch Sorenstein, is the green-skinned, shirtless, loudmouth prankster from Regular Show, known for his catchphrase “You know who else… MY MOM!” and his signature “WOOOOO!” scream. As a groundskeeper at the Park, he works alongside his best friend Hi-Five Ghost and often bullies Mordecai and Rigby, though over time they build a chaotic friendship. Despite his immature, gross-out humor, constant belching, and obsession with dumpster food, he shows surprising emotional depth in episodes like Trucker Hall of Fame (revealing his father’s death), Dumped at the Altar (where he gets married), and The End of Muscle Man, where his future self helps him grow. He’s deeply devoted to his equally intense wife, Starla, with whom he shares a terrifyingly passionate bond. Underneath the flab lies hidden strength—he’s canonically ripped, punches through walls, survives cosmic battles, and once beat Rigby in a fight. Originally a background character, Muscle Man evolved into one of the show’s funniest and most unpredictable personalities, embodying 80s/90s gross-out energy with lines that made him a meme legend. Love him or hate him, he’s a disgusting, hilarious, loyal friend—and a total wildcard.