Walter Matthau Sgt. Jake Martin SFPD Bruce Dern Insp. Leo Larsen SFPD Louis Gossett Jr. Insp. James Larrimore SFPD Albert Paulsen Henry Camerero Anthony Zerbe Lt. Nat Steiner SFPD Val Avery Insp. John Pappas SFPD Cathy Lee Crosby Kay Butler Mario Gallo Bobby Mow, Snitch Joanna Cassidy Monica, Beth's Roomate Frances Lee McCain Prostitute Clifton James Officer Jim Maloney SFPD Bomb Squad Paul Koslo Duane Haygood Matt Clark Coronor William Hansen Mr. Schwermer, Bus Vicitm Shirley Ballard Grace Martin Elaine Collins Go-Go Dancer