Stanley Baker as Johnny Bannion

Sam Wanamaker as Mike Carter

Grégoire Aslan as Frank Saffron

Margit Saad as Suzanne

Jill Bennett as Maggie

Rupert Davies as Edwards

Laurence Naismith as Mr. Town

John Van Eyssen as Formby

Noel Willman as Prison Governor

Derek Francis as Priest

Redmond Phillips as Prison Doctor

Kenneth J. Warren as Clobber

Patrick Magee as Barrows

Robert Adams as Judas

Kenneth Cope as Kelly

Murray Melvin as Antlers

Tom Bell as Flynn

Nigel Green as Ted

Neil McCarthy as O'Hara

Patrick Wymark as Sol

Jack Rodney as Scout

Brian Phelan as Pauly Larkin

John Molloy as Snipe

Paul Stassino as Alfredo Fanucci

Larry Taylor as Charles

Edward Judd as Young Warder

Tom Gerrard as Quantock

Keith Smith as Hanson

Charles Lamb as Mr Able

Dorothy Bromiley as Angela

Denis Shaw as Taxi Customer at Racetrack (uncredited)