Cast
- Colin Baker (The Doctor)
- Bonnie Langford (Melanie Bush)
- Ruth Madeley (Hebe Harrison)
- Cherylee Houston (Elise Kaplan)
- Kacey Ainsworth (Beryl)
- Jake Wardle (Nil / Chronomancer)
- Patricia England (Mrs Varley / Emerald Exerciser / Corruption / Jaunty Quiz Machine Voice)
- Toby Hadoke (Ron)
- Imogen Stubbs (Purity / Patricia McBride / Purifiers)
- Barnaby Eaton-Jones (Mick / Fred)
- Connie Farrow (Young Hebe)
- Brad Shaw (Mr Peabody / Mike / Arcade Machines / Corruption)
- Matthew Brenher (Havash Khavûl)
- Victoria Jeffrey (Silkreth / Silkreth's Time-Suit)
Doctor Who - The Sixth Doctor Adventures
Doctor Who: The Sixth Doctor Adventures: Purity Unbound
Written by Jacqueline Rayner Mark Wright Robert Valentine
Starring Colin Baker Bonnie Langford
