Jon Pertwee (The Doctor), Graeme Smith (Jason), Rebecca Thornhill (Crystal), David Banks (Karl), Judith Hibbert (Deliah / Mrs. T), Troy Webb (Emperor Dalek), Wolf Christian (Cyber Leader), David Bingham (M.C.), Chris Beaumont (U.S. Envoy), Claudia Kelly (Envoy’s Wife), Stephanie Colburn (Zog), Alison Reddihough, Deborah Hecht, Gavin Warwick, Oliver Gray, Paula Tappenden, Terry Walsh