Diamantopoulos played Brian the boom mic operator on 'The Office'—and still gets flak for flirting with Jenna Fischer's Pam, ...
Don’t mess with Paulie Walnuts. Chris Diamantopoulos, who guest starred on the final season of “The Sopranos,” said Tony Sirico — who played mobster Paul “Paulie Walnuts” Gualtieri ...