Cast
- Colin Baker (The Doctor)
- Bonnie Langford (Melanie Bush)
- Nicholas Pegg (Citizen Sokkery / Mentos)
- Stephen Fewell (Councillor Potikol / Assembler 2)
- Christopher Biggins (Banto Zame)
- Clare Buckfield (Sally-Anne Stubbins)
- Mark Wright (Guard)
- Matt Lucas (Cylinder Voice / The Jelloid)
- Jane Goddard (The Questioner)
- Adam Buxton (Assembler 1)
Doctor Who - The Monthly Adventures
027. Doctor Who: The One Doctor
Written by Gareth Roberts Clayton Hickman
Starring Colin Baker Bonnie Langford
