A look at the radical changes made to Doctor Who by John Nathan-Turner for his first story as producer, which opened the programme's eighteenth year on BBC1.
| Actor | Role |
|---|---|
| JJune HudsonNot listed | Not listed |
| LLovett BickfordNot listed | Not listed |
 Christopher H. BidmeadNot listed | Not listed |
 John Nathan-Turner(archive footage) | (archive footage) |
 John LeesonNot listed | Not listed |
| VVal McCrimmonNot listed | Not listed |
 Tom Baker(archive footage) | (archive footage) |
| SSid SuttonNot listed | Not listed |
 Peter HowellNot listed | Not listed |