Cast
- Peter Davison (The Doctor)
- Sarah Sutton (Nyssa)
- Jamie Sandford (Hoodeye / Andrew)
- Toby Longworth (Redklaw / Jack)
- Lois Baxter (Carrion)
- Teresa Gallagher (Snowfire)
- Hugh Fraser (Zero)
- Jeremy James (Guard / Anton / Lasarti)
- Sunny Ormonde (Molly / Anima)
- Trevor Littledale (Jailer)
- David Warner (Sir Isaac Newton)
- John Benfield (Don)
Doctor Who - The Monthly Adventures
091. Doctor Who: Circular Time
Written by Paul Cornell Mike Maddox
Starring Peter Davison Sarah Sutton
