Discover
Original Release
01/10/1971
Cast
| Name | Character |
|---|
| Marius Goring | Prof. John Hardy / Dr John Hardy |
| Ann Morrish | Dr. Jo Hardy / Dr Jo Hardy |
| Victor Winding | Det. Chief Insp. Fleming |
| Michael Farnsworth | Det. Sgt. Ashe |
| Valerie Murray | Sandra Hughes |
| Ralph Arliss | Male hitch-hiker |
| Diana Chappell | Female hitch-hiker |
| Tim Condren | Coach driver |
| Candace Glendenning | Clare Neale |
| Sarah Grazebrook | Mrs. Wright |
Directors
Writers
John Pennington, Jeremy Burnham
Creators
Cast
| Name | Character |
|---|
| Marius Goring | Prof. John Hardy / Dr John Hardy |
| Ann Morrish | Dr. Jo Hardy / Dr Jo Hardy |
| Victor Winding | Det. Chief Insp. Fleming |
| Michael Farnsworth | Det. Sgt. Ashe |
| Valerie Murray | Sandra Hughes |
| Ralph Arliss | Male hitch-hiker |
| Diana Chappell | Female hitch-hiker |
| Tim Condren | Coach driver |
| Candace Glendenning | Clare Neale |
| Sarah Grazebrook | Mrs. Wright |
| Bernard G. High | Policeman |
| Jonathan Newth | Alan Stafford |
| Ann Penfold | Student |
| Mike Pratt | Brian Rowlandson |
| John Rapley | Harris |
| Nicolette Roeg | Pamela Rowlandson |
| Stuart Saunders | Ted Neale |
Producers
| Name | Role |
|---|
| Gerard Glaister | Producer |
