 | James Earl Jones als Barney Hill |
 | Estelle Parsons als Betty Hill |
 | Barnard Hughes als Dr. Benjamin Simon |
 | Dick O'Neill als General James Davison |
 | Beeson Carroll als Lt. Colonel Jack MacRainey |
 | Terrence O'Connor als Lisa MacRainey |
| Jeanne Joe als Examiner |
 | Lou Wagner als The Leader |
| Richard A. Colla | Director |
| John G. Fuller | Book |
| Hesper Anderson | Teleplay |
| Billy Goldenberg | Music |
| Rexford L. Metz | Director of Photography |
| Joe L. Cramer | Producer |
| Richard A. Colla | Executive Producer |
| Peter Wooley | Art Direction |
| Gary Moreno | Set Decoration |
| Tom Connors | Assistant Director |
| Lester Wm. Berke | Unit Manager |
| Richard Bracken | Editor |
| John Carter | Sound |
| Universal Title | Visual Effects |
| Hal Mooney | Music Supervisor |
| Burton Miller | Costume Design |
| Richard Belding | Supervising Editor |
| S. Lee Pogostin | Teleplay |
