The Doctor
Tom Baker
Romana
Mary Tamm
Thawn
Neil McCarthy
Ranquin
John Abineri
Fenner
Philip Madoc
Rohm-Dutt
Glyn Owen
Varlik
Carl Rigg
Skart
Frank Jarvis
Dugeen
John Leeson
Harg
Grahame Mallard
Music
Dudley Simpson
Producer
John Nathan-Turner
Writer
Robert Holmes
Director
Norman Stewart
Graham Williams
Script Editor
Anthony Read