Doctor Who season 14 finally introduced the perfect replacement for the Master, one of the Doctor’s worst enemies. Every actor who has played Doctor Who since Jon Pertwee has faced the Master, who is a renegade Time Lord who wants to rule the universe and will stop at nothing to achieve his goals, including refusing to die at the end of his final regeneration and stealing a human body to maintain life. Although the Doctor is perpetually at odds with the Master, in the classic series they were frenemies who were close while at school.

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