"Arthur Simon Simpson is a small-time crook biding his time in Greece. One of his potential victims turns out to be a gentleman thief planning to steal the emerald-encrusted dagger of the Mehmed II from Istanbul's Topkapi Museum."
Melina Mercouri
as Elizabeth Lipp
Peter Ustinov
as Arthur Simon Simpson
Maximilian Schell
as Walter Harper
Robert Morley
as Cedric Page
Jess Hahn
as Hans
Gilles Ségal
as Giulio
Akim Tamiroff
as Gerven the Cook
Titos Vandis
as Harback
Ege Ernart
as Major Ali Tufan
Senih Orkan
as First Shadow
Danyal Topatan
as Second Shadow
Joe Dassin
as Joseph
Despo Diamantidou
as Voula
Faik Coşkun
as Tavla Player at Hilton (uncredited)
Amy Dalby
as Nanny (uncredited)
Jules Dassin
as Turkish Cop (uncredited)
Selahattin Içsel
Bedri Çavusoglu
as Police Officer (uncredited)
Director
Producer
Eric Ambler
Novel
Monja Danischewsky
Screenplay
Roger Dwyre
Editor
Henri Alekan
Director of Photography
Manos Hatzidakis
Original Music Composer
André Labussière
Set Dresser
Ali Çakus
Second Assistant Director
Lucie Lichtig
Script
Max Lechevallier
Assistant Camera
Patrick Clement-Bayard
Assistant Editor
Deni Vachlioti
Costume Design
Amato Garbini
Makeup Artist
William Robert Sivel
Sound Engineer
Johnny Dwyre
René Chabal
André Cultet
Production Manager
Stepan Melikyan
Raymond Picon Borel
Second Unit Cinematographer
Gilbert Chain
Camera Operator
Philippe Brun
Max Douy
Set Decoration
Jacques Douy
Assistant Set Decoration
Tom Pevsner
Assistant Director
Daniele Grimberg
Associate Producer
Roger Corbeau
Still Photographer
Claude Hauser
Assistant Production Manager
Jean Fouchet
Title Designer
Lee Katz
Giancarlo Del Brocco
Visual Effects