Jo. Tom Baker - The Doctor . Sarah Sutton - Nyssa . Harry Fielder - Security Guard . Janet Fielding - Tegan Jovanka . Matthew Waterhouse - Adric . Peter Roy - Ambulance Man . Peter Davison - The Doctor
. Illarrio Bisi Pedro - Kurkutji . Paul Shelley - Persuasion . Matthew Waterhouse - Adric . Sarah Sutton - Nyssa . Janet Fielding - Tegan Jovanka
. Sarah Sutton - Nyssa . Adrian Mills - Aris . Jeffrey Stewart - Dukkha