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)