Discover
Original Release
04/17/1971
Cast
| Name | Character |
|---|
| Jon Pertwee | The Doctor / Doctor Who |
| Katy Manning | Jo Grant |
| Bernard Kay | Caldwell |
| Nicholas Pennell | Winton |
| John Ringham | Ashe |
| Morris Perry | Dent |
| Tony Caunter | Morgan |
| Roy Skelton | Norton |
| Helen Worth | Mary Ashe |
| John Herrington | Holden |
Directors
Writers
Creators
Cast
| Name | Character |
|---|
| Jon Pertwee | The Doctor / Doctor Who |
| Katy Manning | Jo Grant |
| Bernard Kay | Caldwell |
| Nicholas Pennell | Winton |
| John Ringham | Ashe |
| Morris Perry | Dent |
| Tony Caunter | Morgan |
| Roy Skelton | Norton |
| Helen Worth | Mary Ashe |
| John Herrington | Holden |
| Pat Gorman | Primitive and Voice |
| John Scott Martin | Robot |
| Bob Blaine | Colonist |
| Les Clark | IMC Guard |
| Alf Joint | Primitive |
| Terry Walsh | Primitive |
| John Levene | Sgt. Benton |
| Nicholas Courtney | Alistair Gordon Lethbridge-Stewart |
| Richard Franklin | Captain Mike Yates |
Producers
| Name | Role |
|---|
| Barry Letts | Producer |
