Cast
- Sylvester McCoy (The Doctor)
- Bonnie Langford (Melanie Bush)
- Sophie Aldred (Ace)
- Seán Carlsen (Narvin)
- Toby Longworth (Josiah W Dogbolter)
- Wayne Forester (Hob / Soldier Robots / Alex)
- Jules de Jongh (Captain Regent of the Krasi)
Doctor Who - The Monthly Adventures
243. Doctor Who: The Quantum Possibility Engine
Written by Guy Adams
Starring Sylvester McCoy Bonnie Langford