Peter Riegert, American actor, screenwriter and film director
Peter Riegert (born April 11, 1947) is an American actor, director and screenwriter. He is best known for his roles as Donald "Boon" Schoenstein in Animal House (1978), oil company executive "Mac" MacIntyre in Local Hero (1983), pickle store owner Sam Posner in Crossing Delancey (1988), Lt. Mitch Kellaway in The Mask (1994), and glove manufacturer Lou Levov in American Pastoral (2016). He directed the short film By Courier (2000), for which he was nominated along with producer Ericka Frederick for the Academy Award for Best Live Action Short Film.

On television, Riegert had a recurring role as crooked Newark Assemblyman and later State Senator Ronald Zellman in seasons three and four of the HBO series The Sopranos (2001–2002), appeared as George Moore in the first season of the FX series Damages (2007), and portrayed Seth Green's father in the comedy series Dads (2013–2014). He was nominated for a Primetime Emmy Award for his performance in the HBO film Barbarians at the Gate in 1993.