Following the Doctor's regeneration into a new, younger body, the TARDIS lands at an Earth colony on the planet Vulcan in the far future. Mistaken for an official Earth Examiner, the Doctor discovers that a scientist called Lesterson is attempting to reactivate two inanimate, subservient Daleks found in a crashed space rocket. The colonists refuse to heed the Doctor's dire warnings that the Daleks are dangerous.
Patrick Troughton
Dr. Who
Michael Craze
Ben Jackson
Anneke Wills
Polly
Robert James
Lesterson
Nicholas Hawtrey
Deputy Governor Quinn
Martin King
The Examiner
Bernard Archard
Head of Security Bragen
Pamela Ann Davy
Janley
Peter Bathurst
Governor Hensell
Edward Kelsey
Resno
Richard Kane
Valmar
Peter Hawkins
Daleks (voice)
William Hartnell
The Doctor in the mirror (uncredited)
