| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alberto Cardone | Crew | Directing | Assistant Director |
André Bouladoux | Crew | Camera | Key Grip |
Bruno Avesani | Crew | Art | Assistant Art Director |
Françoise Javet | Crew | Editing | Editor |
 Henri Decaë | Crew | Camera | Director of Photography |
Jacques Carrère | Crew | Sound | Sound Mixer |
Jean Rabier | Crew | Camera | Camera Operator |
 Jean-Paul Schwartz | Crew | Camera | First Assistant Camera |
 Maurice Binder | Crew | Art | Title Designer |
 Maurice Rémy | Crew | Sound | Sound Recordist |
 Nino Rota | Crew | Sound | Original Music Composer |
 Patricia Highsmith | Crew | Writing | Novel |
Paul Bertrand | Crew | Art | Production Design |
 Paul Gégauff | Crew | Writing | Screenplay |
Piero Cocco | Crew | Production | Production Manager |
 Pierre Zimmer | Crew | Directing | Assistant Director |
Raymond Hakim | Crew | Production | Producer |
 René Clément | Crew | Directing | Director, Screenplay |
 Robert Hakim | Crew | Production | Producer |
Jean-Claude Marchetti | Crew | Sound | Sound |
Louis Bonnemaison | Crew | Costume & Make-Up | Makeup Artist |
Raymond Lemoigne | Crew | Art | Property Master |
Marcel Corvaisier | Crew | Sound | Boom Operator |
Jean Guélis | Crew | Crew | Choreographer |
Jacques Météhen | Crew | Sound | Conductor |
Eugène Roman | Crew | Art | Assistant Art Director |
Yvette Vérité | Crew | Directing | Script Supervisor |
 Alain Delon | Cast | Actor | Tom Ripley |
 Ave Ninchi | Cast | Actress | Signora Gianna |
 Billy Kearns | Cast | Actor | Freddy Miles |
 Elvira Popescu | Cast | Actress | Mrs. Popova |
 Erno Crisa | Cast | Actor | Inspector Riccordi |
 Frank Latimore | Cast | Actor | O'Brien |
 Marie Laforêt | Cast | Actress | Marge Duval |
 Maurice Ronet | Cast | Actor | Philippe Greenleaf |
 Nerio Bernardi | Cast | Actor | Agency Director |
 Nino Vingelli | Cast | Actor | (uncredited) |
 Paul Müller | Cast | Actor | Blind Man (uncredited) |
René Clément | Cast | Actor | The clumsy waiter (uncredited) |
 Romy Schneider | Cast | Actress | Freddy's Companion (uncredited) |
 Viviane Chantel | Cast | Actress | The Belgian Lady |
Walter Grant | Cast | Actor | Purchaser of the yacht (uncredited) |
Jacqueline Decaë | Cast | Actress | Ingrid (uncredited) |
Leonello Zanchi | Cast | Actor | Police inspector (uncredited) |
Lily Romanelli | Cast | Actress | Housekeeper |
Nicolas Petrov | Cast | Actor | Boris |
Barbel Fanger | Cast | Actor | Mr. Greenleaf |
| Person | Type | Job | Role(s) |
