 | Sidney Poitier als Homer Smith |
 | Lilia Skala als Mother Maria |
 | Lisa Mann als Sister Gertrude |
 | Isa Crino als Sister Agnes |
 | Francesca Jarvis als Sister Albertine |
| Pamela Branch als Sister Elizabeth |
 | Stanley Adams als Juan Acolito |
 | Dan Frazer als Father Murphy |
 | Bobby Driscoll als Mexican Holding Chapel Door (uncredited) |
 | Ralph Nelson als Mr. Ashton (uncredited) |
| William E. Barrett | Novel |
| James Poe | Screenplay |
| Ralph Nelson | Director |
| Jerry Goldsmith | Original Music Composer |
| Ernest Haller | Director of Photography |
| John W. McCafferty | Editor |
| Ralph Nelson | Producer |
| Robert Eaton | Property Master |
| Stanley K. Scheuer | Script Supervisor |
| Del Harris | Sound Effects |
| Harry R. Sherman | Assistant Director |
| Joe Popkin | Assistant Director |
| Albert Shaff | Music Editor |
| Carlton W. Faulkner | Sound Engineer |
| Leo McCreary | Key Grip |
| Larry Hampton | Production Coordinator |
| Wesley Sherrard | Wardrobe Supervisor |
| J. Paul Popkin | Associate Producer |
| Norman C. McClay | Gaffer |
| Jester Hairston | Music Arranger |
