 | Anna Karina als Paula Nelson |
 | László Szabó als Paul Widmark |
 | Jean-Pierre Léaud als Donald Siegel |
 | Marianne Faithfull als Marianne Faithfull |
 | Yves Afonso als David Goodis |
 | Claude Bakka als Man with Marianne Faithfull (uncredited) |
| Daniel Bart als Policeman (uncredited) |
| Jean-Pierre Biesse als Richard Nixon (uncredited) |
 | Jean-Claude Bouillon als Inspector Aldrich (uncredited) |
| Fernand Coquet als Bill Poster (uncredited) |
 | Marc Dudicourt als Barman (uncredited) |
 | Rémo Forlani als Workman in Bar (uncredited) |
| Eliane Giovagnoli als Dental Assistant (uncredited) |
 | Jean-Luc Godard als Richard Politzer (voice) (uncredited) |
| Sylvain Godet als Robert MacNamara (uncredited) |
| Anne Guegan als Girl in Bandages (uncredited) |
| Kyôko Kosaka als Doris Mizoguchi (uncredited) |
 | Philippe Labro als Self (uncredited) |
 | Rita Maiden als Woman Who Gives Paula Information (uncredited) |
 | Ernest Menzer als Edgar Typhus (uncredited) |
| Miguel als Dentist (uncredited) |
| Jean-Philippe Nierman als Note-Taking Policeman (uncredited) |
| Danielle Palmero als Hotel Chambermaid (uncredited) |
| Marika Perioli als Girl with Dog (uncredited) |
| Alexis Poliakoff als Man with Notebook and Red Telephone (uncredited) |
| Isabelle Pons als Provincial Journalist (uncredited) |
| Philippe Pouzenc als Policeman (uncredited) |
| Roger Scipion als Dr. Korvo (uncredited) |
| Jean-Luc Godard | Director |
| Jean-Luc Godard | Writer |
| Georges de Beauregard | Producer |
| Donald E. Westlake | Novel |
| Clément Steyaert | Producer |
| Françoise Collin | Editor |
| Agnès Guillemot | Editor |
| Raoul Coutard | Director of Photography |
| René Demoulin | Production Manager |
| Claude Bakka | Assistant Director |
| Charles L. Bitsch | Assistant Director |
| Jean-Pierre Léaud | Assistant Director |
| Philippe Pouzenc | Assistant Director |
| René Levert | Sound |
| Jacques Maumont | Sound |
| Georges Liron | Camera Operator |
| Roger Robert | Key Grip |
| Geneviève Letellier | Assistant Editor |
| Samuel Fuller | Thanks |
| Nicholas Ray | Thanks |
