In England, 1066, the Doctor confronts a mysterious Monk who is attempting to change history.
William Hartnell
as The Doctor
Maureen O'Brien
as Vicki
Peter Purves
as Steven Taylor
Peter Butterworth
as The Monk
Alethea Charlton
as Edith
Peter Russell
as Eldred
Michael Miller
as Wulnoth
Michael Guest
as Saxon Hunter
Norman Hartley
as Ulf
Geoffrey Cheshire
as Viking Leader
David Anderson
as Sven
Ronald Rich
as Gunnar the Giant
