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Cast | ![]() |
|
| The Doctor | William Hartnell | ||
| Ian Chesterton | William Russell | ||
| Barbara Wright | Jacqueline Hill | ||
| Vicki | Maureen O'Brien | ||
| Bennet/Koquillion | Ray Barrett | ||
| Captain/Sand Monster | Tom Sheridan | ||
| Didonians | John Stuart | ||
|   | Colin Hughes | ||
| Crew | |||
| Written By | David Whitaker | ||
| Music | Tristam Cary | ||
| Make-up | Sonia Markham | ||
| Costumes | Daphne Dare | ||
| Designer | Raymond P. Cusick | ||
| Script Editor | Dennis Spooner | ||
| Associate Producer | Mervyn Pinfield | ||
| Producer | Verity Lambert | ||
| Director | Christopher Barry | ||
 
 
| Transmission Details | |||
| Episode | Episode Name | Original UK Transmission Date | Duration |
| 1 | The Powerful Enemy | 2 January 1965 | 26:15 |
| 2 | Desperate Measures | 9 January 1965 | 24:36 |