Gene Hackman as Jimmy Doyle

Roy Scheider as Buddy Russo

Fernando Rey as Alain Charnier

Tony Lo Bianco as Sal Boca

Marcel Bozzuffi as Pierre Nicoli

Frédéric de Pasquale as Devereaux

Bill Hickman as Mulderig

Ann Rebbot as Marie Charnier

Harold Gary as Weinstock

Arlene Farber as Angie Boca

Eddie Egan as Simonson

André Ernotte as La Valle

Sonny Grosso as Klein

Benny Marino as Lou Boca

Patrick McDermott as Chemist

Alan Weeks as Pusher

Al Fann as Informant

Irving Abrahams as Police Mechanic

Randy Jurgensen as Police Sergeant

William Coke as Motorman

Charles McGregor as "Baldy" (uncredited)