Mickey Rooney as 'Killer' John Mears

Frank Overton as Father O'Connors

Michael Constantine as Ed Werner

John Vari as Jimmy Martin

Clifford David as Richard Walters

Harry Millard as Fred Mayor

John McCurry as Vince Jackson

Ford Rainey as Red Kirby

Johnny Seven as Tom D'Amoro (as John Seven)

George Marcy as Pete Rodriguez

Don 'Red' Barry as Drake (as Donald Barry)

Leon Janney as Pat Callahan

Clifton James as Harris

Milton Selzer as Peddie

Frank Conroy as O'Flaherty

Alan Bunce as Warden Stanley F. Stone