 | Katharine Hepburn als Mary Tyrone |
 | Ralph Richardson als James Tyrone |
 | Jason Robards als Jamie Tyrone |
 | Dean Stockwell als Edmund Tyrone |
 | Jeanne Barr als Kathleen |
| Sidney Lumet | Director |
| Eugene O'Neill | Writer |
| Jack J. Dreyfus Jr. | Executive Producer |
| Joseph E. Levine | Executive Producer |
| Ely A. Landau | Producer |
| André Previn | Music |
| Boris Kaufman | Director of Photography |
| Ralph Rosenblum | Editor |
| Richard Sylbert | Production Design |
| Gene Callahan | Set Decoration |
| Sophie Devine | Costume Design |
| Herman Buchman | Makeup Artist |
| Kenn Collins | Sound Effects |
| Mark Wortreich | Sound Effects |
| Jim Shields | Sound Designer |
| Mary Roche | Hairstylist |
| Eugene O'Neill | Theatre Play |
