 | James Coburn als Lieutenant Christian |
 | Dick Shawn als Captain Lionel Cash |
 | Sergio Fantoni als Captain Oppo |
 | Aldo Ray als Sergeant Rizzo |
 | Giovanna Ralli als Gina Romano |
 | Harry Morgan als Major Pott |
 | Carroll O'Connor als General Bolt |
 | Leon Askin als Colonel Kastorp |
 | Thomas Hunter als American GI #3 |
 | Jay Novello als Mayor Romano |
 | Artie Lewis als Needleman |
 | Johnny Seven als Vittorio |
| Joe Lo Presti als Italian Soldier (uncredited) |
| Blake Edwards | Director |
| William Peter Blatty | Screenplay |
| Maurice Richlin | Story |
| Blake Edwards | Story |
| Dick Crockett | Associate Producer |
| Owen Crump | Executive Producer |
| Blake Edwards | Producer |
| Henry Mancini | Original Music Composer |
| Philip H. Lathrop | Director of Photography |
| Ralph E. Winters | Editor |
| Harvey Clermont | Casting |
| Fernando Carrere | Production Design |
| Reg Allen | Set Decoration |
| Jack Stevens | Set Decoration |
| Jack Bear | Costume Design |
| Susan Germaine | Hairstylist |
| Allan Snyder | Makeup Supervisor |
| Lynn F. Reynolds | Makeup Artist |
| Gene LeBell | Stunts |
| Glenn R. Wilder | Stunts |
| Charlie Picerni | Stunts |
| Bob Herron | Stunts |
