Paulie 'Walnuts' Gualtieri

Peter Paul "Paulie Walnuts" Gualtieri played by Tony Sirico, is one of the three tritagonists (alongside Silvio Dante and Carmela Soprano) of The Sopranos. He is the loyal but also paranoid caporegime of the DiMeo crime family, acting as a confident, lifelong ally to Tony Soprano while masking a vicious, unpredictable streak beneath his quirks and signature humor.