 | Michael Caine als Sidney Bruhl |
 | Christopher Reeve als Clifford Anderson |
 | Dyan Cannon als Myra Bruhl |
 | Irene Worth als Helga ten Dorp |
 | Henry Jones als Porter Milgrim |
 | Joe Silver als Seymour Starger |
 | Tony DiBenedetto als Burt - the Bartender |
 | Jenny Lumet als Stage Newsboy |
 | Al LeBreton als Handsome Actor |
| Francis B. Creamer Jr. als The Minister (as Rev. Francis B. Creamer Jr.) |
| Stewart Klein als Stewart Klein |
| Jeffrey Lyons als Jeffrey Lyons |
| Joel Siegel als Joel Siegel |
| Jayne Heller als Stage Actress |
| George Peck als Stage Actor |
| Perry Rosen als Stage Actor |
| Sidney Lumet | Director |
| Ira Levin | Theatre Play |
| Jay Presson Allen | Screenplay |
| Alfred De Liagre Jr. | Associate Producer |
| Burtt Harris | Producer |
| Jay Presson Allen | Executive Producer |
| Johnny Mandel | Original Music Composer |
| Andrzej Bartkowiak | Director of Photography |
| Jack Fitzstephens | Editor |
| Edward Pisoni | Art Direction |
| George DeTitta Sr. | Set Decoration |
| Tony Walton | Costume Design |
| Joseph M. Caracciolo | Unit Manager |
| Jennifer Ogden | Unit Production Manager |
| Colleen Callaghan | Hairstylist |
| Joe Cranzano | Makeup Artist |
| Tony Lloyd | Makeup Artist |
| Lee Dichter | Sound Re-Recording Mixer |
| Al Nahmias | Sound Editor |
| James Sabat | Sound Mixer |
| Rick Shaine | Sound Editor |
| Jess Soraci | Sound Editor |
| Bran Ferren | Special Effects |
| Andrew Mondshein | Assistant Editor |
| Ira Levin | Writer |
| Tony Walton | Production Design |
| Jeannie Epper | Stunts |
| Burtt Harris | First Assistant Director |
| Bran Ferren | Visual Effects Director |
