Cast
- Tom Baker (The Doctor)
- Sadie Miller (Sarah Jane Smith)
- Jake Wardle (Eliot Keech)
- Alexander Cobb (Dr Raymond)
- Esther Coles (Scott)
- Nisha Nayar (Dr Ulster)
- Orlando Gibbs (Captain Bradford)
- Clive Hayward (Owen)
- Lucy Goldie (Captain Mina Dixon)
- Sean Connolly (Mr Phillips)
- Carla de Wansey (Helena Charlton)
- Dawn Murphy (Thalia)
- Homer Todiwala (Melpo / Terran)
- Claire Louise Amias (Mahanla)
Doctor Who - The Fourth Doctor Adventures
15B. Doctor Who: The Fourth Doctor Adventures Series 15: Lethal Progress
Written by Lizzie Hopley Tim Foley John Dorney
Starring Tom Baker Sadie Miller
