The Doctor, Vicki and Steven arrive on an arid planet where they meet the beautiful Drahvins and the hideous Rills. Each has crash-landed after a confrontation in space. The Rills are friendly, compassionate explorers. The Drahvins are dull-witted, cloned soldiers, terrorised by the intelligent, warlike matriarch Maaga.
William Hartnell
as The Doctor
Maureen O'Brien
as Vicki
Peter Purves
as Steven Taylor
Stephanie Bidmead
as Maaga
Marina Martin
as Drahvin
Susanna Carroll
as Drahvin
Lyn Ashley
as Drahvin
Jimmy Kaye
as Chumbley
William Shearer
as Chumbley
Angelo Muscat
as Chumbley
Pepi Poupee
as Chumbley
Tommy Reynolds
as Chumbley
