Discover
Original Release
04/22/1977
US Release
04/22/1977
Cast
| Name | Character |
|---|
| Patrick Duffy | Mark Harris |
| Belinda Montgomery | Dr. Elizabeth Merrill |
| Kenneth Tigar | Dr. Miller Simon |
| Alan Fudge | C.W. Crawford |
| Tiffany Bolling | Lioa / Dilly |
| Annette Charles | Ginny Mendoza |
| Burr DeBenning | Xos / Chazz |
| Stanley Bennett Clay | Boy |
| Alan Mandell | Grant Stockwood |
| Hank Stohl | Sub Captain Wes |
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 |
| Tiffany Bolling | Lioa / Dilly |
| Annette Charles | Ginny Mendoza |
| Burr DeBenning | Xos / Chazz |
| Stanley Bennett Clay | Boy |
| Alan Mandell | Grant Stockwood |
| Hank Stohl | Sub Captain Wes |
| Russell Arms | Medical Examiner |
| Arch Archambault | Second Officer |
| Michael J. London | Air Lock Man |
| Vince Deadrick Sr. | Herb Wayland |
| Maurice Hill | Lou |
| Joel Lawrence | Hot Tub Manager |
| Maralyn Thoma | Myrtle |
| Dick Winslow | Fish Store Clerk |
Producers
| Name | Role |
|---|
| Herbert F. Solow | Executive Producer |
| Robert Lewin | Producer |
| Robert H. Justman | Producer |
