Onder andere met: David Janssen (Lester Horton), Arthur Kennedy (CIA Chief of Station, Athens), Maurizio Merli (John Florio), Corinne Clery (Anne Florio), Philippe Leroy (Greek Inspector), Ivan Rassimov (The Silent), Giacomo Rossi-Stuart (Grant), Carla Romanelli (Aliki), Faidon Georgitsis , Dimitris Ioakeimidis , Tom Felleghy , Alberto Martelli , Giorgio Scardovi , Giovanni Cianfriglia , Marina Haritou , Stefano Satta Flores