| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alberto Cardone | Crew | Directing | Director |
Claudius Alzner | Crew | Sound | Original Music Composer |
 Ernesto Gastaldi | Crew | Writing | Screenplay |
Frederick Muller | Crew | Editing | Editor |
 Karl Spiehs | Crew | Production | Producer |
Mario Siciliano | Crew | Writing | Screenplay |
 Rolf Olsen | Crew | Writing | Screenplay |
Siegfried Hold | Crew | Camera | Director of Photography |
Vittorio Salerno | Crew | Writing | Screenplay |
 Robert Lynn | Crew | Directing | Director |
Sheldon Reynolds | Crew | Writing | Screenplay, Director |
 Agnès Spaak | Cast | Actress | Nelly Small (Rio segment) |
 Alberto Bonucci | Cast | Actor | Professor (Rome segment) (uncredited) |
Allen Pinson | Cast | Actor | Ray Runner (Rio segment) |
 Carla Calò | Cast | Actress | Female boss (Rome segment) |
 Carmen G. Cervera | Cast | Actress | Joana (Rio segment) |
 Fortunato Arena | Cast | Actor | Taxi driver (Rome segment) (uncredited) |
 Franco Daddi | Cast | Actor | Gangster #3 (Rome segment) (uncredited) |
 Fregolente | Cast | Actor | Harry Brenton (Rio segment) |
 Harald Dietl | Cast | Actor | Hans, Thug #1 (Vienna segment) (uncredited) |
 Herbert Fux | Cast | Actor | Thug #2 (Vienna segment) (uncredited) |
 Johanna Matz | Cast | Actress | Monique Carrar (Vienna segment) |
 José Lewgoy | Cast | Actor | President (Rio segment) (uncredited) |
 Karin Dor | Cast | Actress | Denise (Rio segment) |
 Klaus Kinski | Cast | Actor | Gomez (Rio segment) |
 Lex Barker | Cast | Actor | Glenn Cassidy |
 Luciano Pigozzi | Cast | Actor | Ivan (Rome segment) (uncredited) |
 Margaret Lee | Cast | Actress | Agent Linda (Rome segment) |
Michael Janisch | Cast | Actor | Kurt Waldeck (Vienna segment) (uncredited) |
 Pascale Petit | Cast | Actress | Lotty (Vienna segment) |
 Peter Vogel | Cast | Actor | Wendt, Suspected girls' killer (Frame story) |
 Pierre Brice | Cast | Actor | Agent Brice |
 Pietro Ceccarelli | Cast | Actor | Gangster #2 (Rome segment) (uncredited) |
 Raoul Retzer | Cast | Actor | Doorman (Vienna segment) (uncredited) |
 Richard Münch | Cast | Actor | Professor Alden (Frame story) |
 Robert Favart | Cast | Actor | Sergej (Vienna segment) (uncredited) |
Roberto Miali | Cast | Actor | Pessana (Rio segment) |
 Spartaco Conversi | Cast | Actor | Gangster #4 (Rome segment) (uncredited) |
 Stewart Granger | Cast | Actor | David Porter |
 Walter Giller | Cast | Actor | Karl (Vienna segment) |
Kim Camba | Cast | Gigi (Rome segment) (unconfirmed) | |
| Person | Type | Job | Role(s) |
