Discover
Original Release
03/25/1972
Cast
| Name | Character |
|---|
| Jon Pertwee | Doctor Who / The Doctor |
| Roger Delgado | Master |
| Katy Manning | Jo Grant |
| Edwin Richfield | Captain Hart |
| Donald Sumpter | Commander Ridgeway |
| David Griffin | Lt. Commander Mitchell |
| Colin Bell | C.P.O. Summers |
| Christopher Wray | Ldg. Seaman Lovell |
| Rex Rowland | A / B Girton |
| Martin Boddey | Walker |
Directors
Writers
Creators
Cast
| Name | Character |
|---|
| Jon Pertwee | Doctor Who / The Doctor |
| Roger Delgado | Master |
| Katy Manning | Jo Grant |
| Edwin Richfield | Captain Hart |
| Donald Sumpter | Commander Ridgeway |
| David Griffin | Lt. Commander Mitchell |
| Colin Bell | C.P.O. Summers |
| Christopher Wray | Ldg. Seaman Lovell |
| Rex Rowland | A / B Girton |
| Martin Boddey | Walker |
| Norman Atkyns | Rear Admiral |
| June Murphy | 3rd Officer Jane Blythe |
| Alec Wallis | Ldg. Telegraphist Bowman |
| Peter Forbes-Robertson | Chief Sea Devil |
| Pat Gorman | Sea Devil |
| Peter Brace | |
| Brian Nolan | Sea Devil |
| Frank Seton | Sea Devil |
| Michael Stevens | Sea Devil |
| Nicholas Courtney | Alistair Gordon Lethbridge-Stewart |
Producers
| Name | Role |
|---|
| Barry Letts | Producer |
