Calificación
Reparto

William Hartnell
The Doctor

Carole Ann Ford
Susan Foreman

Jacqueline Hill
Barbara Wright

William Russell
Ian Chesterton

George Coulouris
Arbitan

Martin Cort
Voord / Warrior / Ice Soldier / Aydan

Peter Stenson
Voord / Ice Soldier / Second Judge

Gordon Wales
Voord

Robin Phillips
Altos

Katherine Schofield
Sabetha

Heron Carvic
Voice of Morpho (voice)

Edmund Warwick
Darrius

Francis de Wolff
Vasor

Michael Allaby
Ice Soldier / Larn

Alan James
Ice Soldier / First Judge / Guard

Anthony Verner
Ice Soldier