Trailer
Images
 | Bibi Andersson as Erika Kosnov |
 | Patrick O'Neal as Charles Rone |
 | Richard Boone as Ward |
 | Nigel Green as The Whore |
 | Dean Jagger as Highwayman |
 | Lila Kedrova as Madam Sophie |
 | Micheál Mac Liammóir as Sweet Alice |
 | Barbara Parkins as B. A. |
 | Ronald Radd as Captain Potkin |
 | George Sanders as Warlock |
 | Raf Vallone as Puppet Maker |
 | Max von Sydow as Colonel Kosnov |
 | Orson Welles as Bresnavitch |
 | Sandor Elès as Lt. Grodin |
 | Niall MacGinnis as Erector Set |
 | Anthony Chinn as Kitai |
 | Guy Deghy as Professor |
 | John Huston as Admiral |
 | Fulvia Ketoff as Sonia Potkin |
 | Vonetta McGee as The Negress |
 | Marc Lawrence as The Priest |
 | Cyril Shaps as Police Doctor |
 | Christopher Sandford as Rudolph |
| Hana Maria Pravda as Mrs. Kazar |
 | George Pravda as Kazar |
 | Ludmilla Dudarova as Mrs. Potkin |
| Dimitri Tamarov as Ilya |
 | Pehr-Olof Sirén as Receptionist |
| Daniel Smid as Waiter |
| Victor Beaumont as The Dentist |
 | Steffen Zacharias as Dittomachine |
| Laura Forin as Elena Potkin |
| Saara Ranin as Mikail's Mother |
| Sacha Carafa as Mrs. Grodin |
| Brandon Brady as Clocker Dan (uncredited) |
 | Larry Cross as Member of Tillnger Foundation (uncredited) |
| Rune Sandlund as Mikhail (uncredited) |
| Directing | |
| John Huston | Director |
Writing | |
| Noel Behn | Novel |
Sound | |
| Robert Drasnin | Original Music Composer |
Writing | |
| John Huston | Screenplay |
| Gladys Hill | Screenplay |
Production | |
| John Huston | Producer |
| Robert Lennard | Casting |
Art | |
| Ted Haworth | Production Design |
| Elven Webb | Art Direction |
| Dario Simoni | Set Decoration |
Costume & Make-Up | |
| John Furniss | Costume Design |
| George Frost | Makeup Supervisor |
Camera | |
| Edward Scaife | Director of Photography |
Editing | |
| Russell Lloyd | Editor |
Production | |
| Carter DeHaven | Producer |
| Sam Wiesenthal | Producer |
