Nicholas Whistler

Dirk Bogarde

Vlasta Simoneva

Sylva Koscina

Vicek

Philo Hauser

Clerk in Opening Scene

John Junkin

Lorna

Jill Melford

Fred

Derek Nimmo

Roddinghead

Richard Vernon

Leon

Brook Williams

Technician in Czech Glass Factory

Gertan Klauber

Plakov

Richard Pasco

Simenova's Assistant

Alan Tilvern

Employment Exchange Clerk

Norman Bird

Col. Cunliffe

Robert Morley

Waiter

Andre Charisse

British Embassy Porter

Frank Finlay

Russian Dancer

Sandra Hampton

Hotel Receptionist

Harriet Medin

Passenger on Plane

William Mervyn

The Milkman

Tiberio Mitri

Pravelko

George Pravda

Robert Rietti

Men's Room Attendant

John Standing

Simoneva

Leo McKern

Josef

Roger Delgado

Sun Bathing Man

Derek Fowlds

Golushha

Eric Pohlmann

Roger Allsop

John Le Mesurier

Johnnie

Noel Harrison

Cunliffe’s Secretary

Amanda Grinling

Original Music Composer

Angelo Francesco Lavagnino

Director

Ralph Thomas

Novel

Lionel Davidson

Art Direction

Syd Cain

Screenplay

Lukas Heller

Editor

Alfred Roome

Director of Photography

Ernest Steward

Producer

Betty E. Box

Costume Design

Yvonne Caffin