Stephen Boyd
— Peter Jongman
Dolores Hart
— Lisa Held
Leo McKern
— Brandt
Hugh Griffith
— Van der Pink
Donald Pleasence
— Wolters
Harry Andrews
— Ayoob
Robert Stephens
— Dickens
Marius Goring
— Thorens
Finlay Currie
— De Kool
Geoffrey Keen
— Bartels
Neil McCallum
— Browne
Jean Anderson
— Mrs. Jongman
Jane Jordan Rogers
— Anaka Jongman
Jack Gwillim
— Inspector Cobb
Arthur Gross
— Railway Conductor
Anne Dickins
— Rachel
Vi Stevens
— Barge Woman
Derek Francis
— Detective Inspector
Victor Brooks
— Sergeant Groninger
Geoffrey Frederick
— Soldier
Clifford Elkin
— Signaller