Scientist Doctor Who accidentally activates his new invention, the Tardis, a time machine disguised as a police telephone box. Who, his two granddaughters Barbara and Susan, and Barbara's boyfriend Ian are transported through time and space to the planet Skaro, where a peaceful race of Thals are under threat of nuclear attack from the planet's other inhabitants: the robotic mutant Daleks.
Peter Cushing
as Doctor Who
Roy Castle
as Ian Chesterton
Jennie Linden
as Barbara
Roberta Tovey
as Susan
Barrie Ingham
as Alydon
Michael Coles
as Ganatus
Geoffrey Toone
as Temmosus
Yvonne Antrobus
as Dyoni
John Bown
as Antodus
Mark Peterson
as Elyon
Ken Garady
as Thal
Nicholas Head
as Thal