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· Trailer · Official
Doctor Who: The Mind of Evil (1971)
Mind of Evil | Doctor Who DVD
Professor Emil Keller has created a machine that can pacify even the most dangerous of criminals. But when the Doctor and Jo arrive at Stangmoor Prison for a demonstration, things start to go horribly wrong - especially when they discover that the Doctor's old enemy the Master is responsible for the machine.
20 cast members
Jon Pertwee
Katy Manning
Nicholas Courtney
Richard Franklin
John Levene
Roger Delgado
Pik-Sen Lim
Raymond Westwell
Michael Sheard
Simon Lack