Tom Baker Dr. Who Actor Lalla Ward Romana Actor Christopher Neame Skagra Actor Julian Glover Count Scarlioni Actor Denis Carey Professor Chronotis Actor Eileen Way Karela Actor David Daker Rigg Actor Peter Straker Commander Sharrel Actor Daniel Hill Chris Parsons Actor Geoffrey Bateman Dymond Actor Bob Hornery Pilot Actor Tom Chadbon Duggan Actor Malcolm Terris Co-Pilot Actor Kevin Flood Hermann Actor Robin Sherringham Nimon Actor Roy Skelton Daleks Voice Edward Kelsey Edu Actor Tim Munro Ainu Actor David Brierly Voice of K9 Voice Clifford Norgate Voice of the Nimon Voice Pennant Roberts Director Alan Bromly Director Kenny McBain Director Michael Hayes Director Ken Grieve Director Christopher Barry Director David Fisher Writer Charles Norton Director, Producer, Writer Anthony Read Writer Bob Baker Writer Terry Nation Writer Douglas Adams Writer Graham Williams Producer John Nathan-Turner Producer, Writer