Cast & crew
Once a Thief (1965)
Directed by Ralph Nelson Written by Zekial Marko
Cast
| Alain Delon | Eddie Pedak |
| Ann-Margret | Kristine Pedak |
| Van Heflin | Inspector Mike Vido |
| Jack Palance | Walter Pedak |
| Steve Mitchell | Frank Kane |
| Tammy Locke | Kathy Pedak |
| Zekial Marko | Luke |
| John Davis Chandler | James Arthur Sargatanas, Walter's Henchman |
| Jeff Corey | Lieutenant Kebner |
| Tony Musante | Cleveland 'Cleve' Shoenstein |
| Joanna Pang | Maria (uncredited) |
| Henry Leff | James (Uncredited) |
| Yuki Shimoda | John Ling |
| Robert Foulk | George (uncredited) |
| Paul Frees | Voice of Luke (Uncredited) |
| Russell Lee | Drummer |
| Spencer Chan | Chinese Priest (Uncredited) |
| Bebe Louie | Bar Girl (uncredited) |
| Toy Mar | Liquor Store Proprietress (Uncredited) |
| Sam Flint | Security Guard (uncredited) |
| Robert B. Williams | Foreman (uncredited) |
| Lily Valenty | Mrs. Vido (Uncredited) |
Crew
| Ralph Nelson | Director |
| Lalo Schifrin | Original Music Composer |
| Robert Burks | Director of Photography |
| Zekial Marko | Screenplay |
| Fredric Steinkamp | Editor |
| Erich von Stroheim Jr. | Assistant Director |
| Paul Groesse | Art Direction |
| Sydney Guilaroff | Hairstylist |
| Jacques Bar | Producer |
| Fred Engel | Associate Producer |
| J. Paul Popkin | Production Supervisor |
| Franklin Milton | Recording Supervision |
| Ralph Nelson | Associate Producer |
| George W. Davis | Art Direction |
| Lindsley Parsons Jr. | Assistant Production Manager |
| William Tuttle | Makeup Supervisor |
| Jack Mills | Set Decoration |
| Henry Grace | Set Decoration |
| Zekial Marko | Novel |
| George 'Red' Callender | Musician |
| Buddy Collette | Musician |
| Paul Horn | Musician |
| Lalo Schifrin | Conductor |
| Walter Kelley | Dialogue Coach |
| Conte Candoli | Musician |
| Howard Roberts | Musician |
| Shelly Manne | Musician |
| Artie Kane | Musician |