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)