On screen
Cast
22 credited performers
William Hartnell
The Doctor
Carole Ann Ford
Susan Foreman
Jacqueline Hill
Barbara Wright
William Russell
Ian Chesterton
George Coulouris
Arbitan
Artwork unavailable
Martin Cort
Voord / Warrior / Ice Soldier / Aydan
Artwork unavailable
Peter Stenson
Voord / Ice Soldier / Second Judge
Artwork unavailable
Gordon Wales
Voord
Robin Phillips
Altos
Artwork unavailable
Katherine Schofield
Sabetha
Artwork unavailable
Heron Carvic
Voice of Morpho (voice)
Edmund Warwick
Darrius
Francis de Wolff
Vasor
Artwork unavailable
Michael Allaby
Ice Soldier / Larn
Artwork unavailable
Alan James
Ice Soldier / First Judge / Guard
Anthony Verner
Ice Soldier
Artwork unavailable
Henley Thomas
Tarron
Raf De La Torre
Senior Judge
Artwork unavailable
Fiona Walker
Kala
Donald Pickering
Eyesen
Artwork unavailable
Stephen Dartnell
Yartek
Artwork unavailable
Dougie Dean
Eprin (uncredited)