| Cast | |||
|---|---|---|---|
| Tom Baker |  | Doctor Who |  |
| Lalla Ward |  | Romana | |
| John Leeson |  | K9 | |
| Christopher Benjamin |  | Henry Gordon Jago | |
| Trevor Baxter |  | Professor George Litefoot | |
| Conrad Asquith |  | Inspector Quick | |
| Ed Stoppard |  | Sir Nicholas Asquin | |
Home Region:
| Cast | |||
|---|---|---|---|
| Tom Baker | | Doctor Who | |
| Lalla Ward | | Romana | |
| John Leeson | | K9 | |
| Christopher Benjamin | | Henry Gordon Jago | |
| Trevor Baxter | | Professor George Litefoot | |
| Conrad Asquith | | Inspector Quick | |
| Ed Stoppard | | Sir Nicholas Asquin | |
Home Region: