Mark Ruffalo Tells Kevin O’Leary to “Shut the F*ck Up”: “You Played Yourself Well in ‘Marty Supreme’”

O’Leary’s recent comments slamming Billie Eilish’s anti-ICE Grammys speech irritated Mark Ruffalo enough that the actor took to social media to tell O’Leary to “shut the f*ck up.”