Discover
Original Release
11/29/1972
Cast
| Name | Character |
|---|
| Alfred Burke | Frank Marker |
| Ray Smith | Firbank |
| Michael Culver | Dr. Pembroke |
| Esmond Knight | Dr. Stowe |
| Ann Curthoys | Felicity |
| Beryl Cooke | Receptionist |
| Trevor Adams | Farmer |
| Ronald Govey | Investigator |
| Elisabeth Sladen | Policewoman |
| David Ellison | 'Freezer' Man |
Directors
Writers
John Kershaw, Roger Marshall, Anthony Marriott
Cast
| Name | Character |
|---|
| Alfred Burke | Frank Marker |
| Ray Smith | Firbank |
| Michael Culver | Dr. Pembroke |
| Esmond Knight | Dr. Stowe |
| Ann Curthoys | Felicity |
| Beryl Cooke | Receptionist |
| Trevor Adams | Farmer |
| Ronald Govey | Investigator |
| Elisabeth Sladen | Policewoman |
| David Ellison | 'Freezer' Man |
Producers
| Name | Role |
|---|
| Helge Pahlman | Producer |
