Ivan Dragomiloff

Oliver Reed

Sonya Winter

Diana Rigg

Lord Bostwick

Telly Savalas

Gen. von Pinck

Curt Jurgens

Monsieur Lucoville

Philippe Noiret

Herr Weiss

Warren Mitchell

Madame Otero

Beryl Reid

Cesare Spado

Clive Revill

Monsieur Popescu

Kenneth Griffith

Baron Muntzof

Vernon Dobtcheff

Eleanora Spado

Annabella Incontrera

Angelo

Jess Conrad

Swiss Peasant

George Coulouris

Mme. Lucoville

Katherine Kath

Editor

Ralph Michael

'La Belle Amie' desk clerk

Eugene Deckers

Jealous lover at 'La Belle Amie' (uncredited)

Peter Bowles

English Officer

Jeremy Lloyd

Swiss Cashier

Olaf Pooley

Clients at Mme. Otero's

Victor Kendall

Elevator victim

Frank Thornton

Zeppelin pilot

George Murcell

Zeppelin officer

Michael Wolf

Corporal

Gordon Sterne

M. Marivaux at 'La Belle Amie'

William Kendall

Bureau Member (uncredited)

Roger Delgado

Bureau Member

Maurice Browning

Bureau Member

Clive Cazes

Elevator victim Leonardi

Milton Reid

'La Belle Amie' Girl

Nita Lorraine

Venetian Police Officer (uncredited)

Michael Mellinger

German Officer

Philip Madoc

Blind Man

Kevin Stoney

Hatter

Lockwood West

Blind hatmaker (Uncredited)

Rosalind Elliot

Police Inspector (uncredited)

John Abineri

Assistant Editor (uncredited)

Anthony Dawes

Soldier (uncredited)

Harry Fielder

Venice Hotel Manager (uncredited)

Michael Gover

Dragomiloff's Butler (uncredited)

Peter Graves

Bureau Member (uncredited)

John Hallam

von Pinck's Aide (uncredited)

John G. Heller

Exp!oding Casket Victim (uncredited)

Alastair Hunter