Discover
Original Release
05/17/1977
US Release
05/17/1977
Cast
| Name | Character |
|---|
| Patrick Duffy | Mark Harris |
| Belinda Montgomery | Dr. Elizabeth Merrill |
| Kenneth Tigar | Dr. Miller Simon |
| Alan Fudge | C.W. Crawford |
| Fred Beir | Captain Bracy |
| Brad David | Sid |
| Carole Demas | Pamela |
| Ivan Bonar | Edwin Shirley |
| James Sikking | Colonel Manzone |
| James Parkes | (as James R. Parkes) |
Directors
Writers
Creators
Cast
| Name | Character |
|---|
| Patrick Duffy | Mark Harris |
| Belinda Montgomery | Dr. Elizabeth Merrill |
| Kenneth Tigar | Dr. Miller Simon |
| Alan Fudge | C.W. Crawford |
| Fred Beir | Captain Bracy |
| Brad David | Sid |
| Carole Demas | Pamela |
| Ivan Bonar | Edwin Shirley |
| James Sikking | Colonel Manzone |
| James Parkes | (as James R. Parkes) |
| Brian Baker | Sub Navigator |
| Michael J. London | Cetacean crew |
Producers
| Name | Role |
|---|
| Herbert F. Solow | Executive Producer |
| John D.F. Black | Producer |
