 | Gene Hackman als Jimmy Doyle |
 | Fernando Rey als Alain Charnier |
 | Roy Scheider als Buddy Russo |
 | Tony Lo Bianco als Sal Boca |
 | Marcel Bozzuffi als Pierre Nicoli |
 | Frédéric de Pasquale als Devereaux |
 | Bill Hickman als Mulderig |
 | Ann Rebbot als Marie Charnier |
| Harold Gary als Weinstock |
 | Arlene Farber als Angie Boca |
| Eddie Egan als Simonson |
 | André Ernotte als La Valle |
| Sonny Grosso als Klein |
| Benny Marino als Lou Boca |
| Patrick McDermott als Chemist |
 | Alan Weeks als Pusher |
| Al Fann als Informant |
| Irving Abrahams als Police Mechanic |
 | Randy Jurgensen als Police Sergeant |
| William Coke als Motorman |
| Charles McGregor als "Baldy" (uncredited) |
| Philip D'Antoni | Producer |
| Ernest Tidyman | Screenplay |
| William Friedkin | Director |
| Owen Roizman | Director of Photography |
| Edward Garzero | Set Decoration |
| Ben Kasazkow | Art Direction |
| Gerald B. Greenberg | Editor |
| Chris Newman | Sound |
| Eddie Egan | Other |
| William Ward | Electrician |
| Sass Bedig | Special Effects |
| Joseph Fretwell III | Costume Design |
| William C. Gerrity | Assistant Director |
| G. David Schine | Executive Producer |
| Terence A. Donnelly | Assistant Director |
| Kenneth Utt | Associate Producer |
| Bill Hickman | Stunt Coordinator |
| Irving Buchman | Makeup Artist |
| Nicholas Sgarro | Script Supervisor |
| Robin Moore | Book |
| Theodore Soderberg | Sound |
| Paul Ganapoler | Unit Production Manager |
| Robert Weiner | Casting |
| Don Ellis | Original Music Composer |
| Thomas Wright | Property Master |
| Norman Gay | Associate Editor |
| Enrique Bravo | Camera Operator |
| Don Ellis | Conductor |
| Robert Ward | Key Grip |
| Joseph W. Dehn | Wardrobe Supervisor |
| Fat Thomas | Other |
| Florence Foy | Wardrobe Supervisor |
| Hal Needham | Stunts |
| Fred J. Lincoln | Stunts |
| Carey Loftin | Stunt Driver |
| Joe Pronto | Stunts |
| Alex Stevens | Stunts |
| Bill Hickman | Stunt Double |
| Jerry Summers | Stunt Driver |
| Joe Finnegan | Stunts |
| Harry Daley | Stunts |
| George Fisher | Stunts |
| Cliff Cudney | Stunts |
| Eddie Egan | Technical Advisor |
| William Friedkin | Screenplay |
| Sonny Grosso | Technical Advisor |
