Discover
Original Release
03/21/1971
Cast
| Name | Character |
|---|
| Marius Goring | Prof. John Hardy |
| Ann Morrish | Dr. Jo Hardy |
| Victor Winding | Det. Chief Insp. Fleming |
| Michael Farnsworth | Det. Sgt. Ashe |
| Valerie Murray | Sandra Hughes |
| Peter Diamond | Harry Preston |
| Guy Healey | Stephen Howard |
| Noel Johnson | Ralph Howard |
| Stella Tanner | Jessie Preston |
| Ronald Hanmer | Isobel Howard |
Directors
Writers
Creators
Cast
| Name | Character |
|---|
| Marius Goring | Prof. John Hardy |
| Ann Morrish | Dr. Jo Hardy |
| Victor Winding | Det. Chief Insp. Fleming |
| Michael Farnsworth | Det. Sgt. Ashe |
| Valerie Murray | Sandra Hughes |
| Peter Diamond | Harry Preston |
| Guy Healey | Stephen Howard |
| Noel Johnson | Ralph Howard |
| Stella Tanner | Jessie Preston |
| Ronald Hanmer | Isobel Howard |
Producers
| Name | Role |
|---|
| Gerard Glaister | Producer |
