The Black Windmill

Michael Caine

Maj. John Tarrant

Donald Pleasence

Cedric Harper

Delphine Seyrig

Ceil Burrows

Clive Revill

Alf Chestermann

John Vernon

McKee

Joss Ackland

Chief Supt. Wray

Janet Suzman

Alex Tarrant

Catherine Schell

Lady Melissa Julyan

Joseph O'Conor

Sir Edward Julyan

Denis Quilley

Bateson

Derek Newark

Monitoring Policeman

Edward Hardwicke

Mike McCarthy

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Maureen Pryor

Jane Harper

Joyce Carey

Miss Monley

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Preston Lockwood

Ilkeston

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Molly Urquhart

Margaret

David Daker

MI5 Man

Hermione Baddeley

Hetty

Patrick Barr

Gen. St. John

Yves Afonso

Jacques (uncredited)