David Janssen
Lester Horton
Arthur Kennedy
CIA Chief of Station, Athens
Maurizio Merli
John Florio
Corinne Cléry
Anne Florio
Ivan Rassimov
The Silent
Giacomo Rossi Stuart
Grant
Philippe Leroy
Greek Inspector
Romolo Guerrieri
Director
Stelvio Cipriani
Original Music Composer
Franco Caruso
Line Producer
Enzo Silvestri
Executive Producer
Giuseppe Tortorella
Executive Producer
Gianbattista Milesi
Producer
Michele Germano
Production Manager
Vittorio Schiraldi
Story
Vittorio Schiraldi
Screenplay
Nico Ducci
Screenplay
Romolo Guerrieri
Screenplay
Mino Roli
Screenplay
Eugenio Liverani
Production Design
Antonio Siciliano
Editor
Erico Menczer
Director of Photography