Cast

• Colin Baker (The Doctor)
• Nicola Bryant (Peri Brown)
• Lisa Greenwood (Flip Ramon)
• Bonnie Langford (Melanie Bush)
• Miranda Raison (Mrs Constance Clarke)
• Jonnie Broadbent (Quins)
• Andrew Dunn (Otho)
• Carrie Quinlan (Zeta / Nan)
• Nikki Kelly (Madge)
• Sanjeev Kohli (Brother Boyle / Vallot)
• David Monteath (Herald / Brother Marcus / Farmer Hennok)
• Philip Labey (Herbert G Wells / Passing Farmer)
• Rhys Jennings (Brother Gladstone / Turka)
• Lara Lemon (Quins' computers / Farm Computer)
• Dan Starkey (Marshall Skurr / Commander Lurx / Corporal Kreng)
• Susan Earnshaw (Empress Varia / General Treya / Geminusians)