Ex-gevangene Eddie en zijn vrouw Kristine proberen een nieuw leven op te bouwen voor zichzelf en hun dochter Kathy in San Francisco, maar politieagent Mike Vido is vastbesloten Eddie terug naar de gevangenis te sturen.
Nee, helaas is Once a Thief nog niet beschikbaar op Netflix in Nederland.
| Directing | Ralph Nelson | Director |
| Writing | Zekial Marko | Screenplay |
| Sound | Lalo Schifrin | Original Music Composer |
| Camera | Robert Burks | Director of Photography |
| Editing | Fredric Steinkamp | Editor |
| Production | Jacques Bar | Producer |
| Writing | Zekial Marko | Novel |
| Production | Fred Engel | Associate Producer |
| Production | Ralph Nelson | Associate Producer |
| Art | George W. Davis | Art Direction |
| Art | Paul Groesse | Art Direction |
| Art | Henry Grace | Set Decoration |
| Art | Jack Mills | Set Decoration |
| Costume & Make-Up | Sydney Guilaroff | Hairstylist |
| Costume & Make-Up | William Tuttle | Makeup Supervisor |
| Production | J. Paul Popkin | Production Supervisor |
| Production | Lindsley Parsons Jr. | Assistant Production Manager |
| Directing | Erich von Stroheim Jr. | Assistant Director |
| Sound | Franklin Milton | Recording Supervision |
| Sound | Lalo Schifrin | Conductor |
| Sound | George 'Red' Callender | Musician |
| Sound | Conte Candoli | Musician |
| Sound | Buddy Collette | Musician |
| Sound | Paul Horn | Musician |
| Sound | Artie Kane | Musician |
| Sound | Shelly Manne | Musician |
| Sound | Howard Roberts | Musician |
| Crew | Walter Kelley | Dialogue Coach |
