Steve McQueen as Hilts 'The Cooler King'

James Garner as Hendley 'The Scrounger'

Richard Attenborough as Bartlett 'Big X'

James Donald as Ramsey 'The SBO'

Charles Bronson as Danny 'Tunnel King'

Donald Pleasence as Blythe 'The Forger'

James Coburn as Sedgwick 'Manufacturer'

Hannes Messemer as Von Luger 'The Kommandant'

David McCallum as Ashley-Pitt 'Dispersal'

Gordon Jackson as MacDonald 'Intelligence'

John Leyton as Willie 'Tunnel King'

Angus Lennie as Ives 'The Mole'

Nigel Stock as Cavendish 'The Surveyor'

Robert Graf as Werner 'The Ferret'

Jud Taylor as Goff

Hans Reiser as Herr Kuhn

Harry Riebauer as Stratwitch

William Russell as Sorren

Robert Freitag as Capt. Posen

Ulrich Beiger as Preissen

George Mikell as Lt. Dietrich

Lawrence Montaigne as Haynes ('Diversions')

Robert Desmond as Griffith 'Tailor'

Til Kiwe as Frick

Heinz Weiss as Kramer

Tom Adams as Dai Nimmo ('Diversions')

Karl-Otto Alberty as S.S. Officer Steinach