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Tom Baker
The Doctor

Lalla Ward
Romana

Matthew Waterhouse
Adric

John Leeson
K9 (voice)

Emrys James
Aukon

Rachel Davies
Camilla

William Lindsay
Zargo

Clinton Greyn
Ivo

Rhoda Lewis
Marta

Thane Bettany
Tarak

Iain Rattray
Habris

Arthur Hewlett
Kalmar

Stacy Davies
Veros

Dean Allen
Karl

Stuart Fell
Roga

Stuart Blake
Zoldaz