Al Pacino character Sonny Wortzik
John Cazale character Salvatore 'Sal' Naturale
Charles Durning character Det. Sgt. Eugene Moretti
Chris Sarandon character Leon Shermer
James Broderick character Agent Sheldon
William Bogert character TV Anchorman
Penelope Allen character Sylvia 'Mouth'
Sully Boyar character Mulvaney
Beulah Garrick character Margaret
Carol Kane character Jenny 'The Squirrel'
Sandra Kazan character Deborah
Marcia Jean Kurtz character Miriam
Amy Levitt character Maria
John Marriott character Howard Calvin
Estelle Omens character Edna
Gary Springer character Stevie
Carmine Foresta character Carmine
Lance Henriksen character Agent Murphy
Floyd Levine character Phone Cop
Dick Anthony Williams character Limo Driver
Dominic Chianese character Father
Marcia Haufrecht character Neighbor
Judith Malina character Mother
Susan Peretz character Angela 'Angie' Wortzik
Ron Cummins character TV Reporter
Jay Gerber character Sam
Philip Charles MacKenzie character Doctor
Chu Chu Malave character Maria's Boyfriend
Lionel Pina character Pizza Boy
Robert Costanzo character New York Policeman (uncredited)
Ron Gilbert character Detective (uncredited)
Kenneth McMillan character Commissioner (uncredited)
Ed Metzger character Sgt. Murray (uncredited)
Lynette Sheldon character Sadie (uncredited)
Alan Berger character Lout (uncredited)
James Bulleit character Sgt. Gillis (uncredited)
Todd Everett character Cop (uncredited)
Raymond Serra character New York Plainclothes Cop (uncredited)
Tom Towles character Cop (uncredited)