Michael Caine

Maj. John Tarrant

Acting

Donald Pleasence

Cedric Harper

Acting

Delphine Seyrig

Ceil Burrows

Acting

Clive Revill

Alf Chestermann

Acting

John Vernon

McKee

Acting

Joss Ackland

Chief Supt. Wray

Acting

Janet Suzman

Alex Tarrant

Acting

Catherine Schell

Lady Melissa Julyan

Acting

Joseph O'Conor

Sir Edward Julyan

Acting

Denis Quilley

Bateson

Acting

Derek Newark

Monitoring Policeman

Acting

Edward Hardwicke

Mike McCarthy

Acting

Maureen Pryor

Jane Harper

Acting

Joyce Carey

Miss Monley

Acting

Preston Lockwood

Ilkeston

Acting

Molly Urquhart

Margaret

Acting

David Daker

MI5 Man

Acting

Hermione Baddeley

Hetty

Acting

Patrick Barr

Gen. St. John

Acting

Yves Afonso

Jacques (uncredited)

Acting

Del Baker

Shadow (uncredited)

Crew

Murray Brown

Doctor (uncredited)

Acting

Les Conrad

M15 Man (uncredited)

Acting

George Lane Cooper

Pincus (uncredited)

Acting

Brenda Cowling

Secretary (uncredited)

Acting

Robert Dorning

Jeweller (uncredited)

Acting

Roy Everson

M15 Man (uncredited)

Acting

Nancy Gabrielle

Manageress (uncredited)

Acting

Jill Goldston

Commuter (uncredited)

Acting

Charlie Gray

Tourist (uncredited)

Acting

Peter Halliday

Customs Officer (uncredited)

Acting