Archenemy

The Fourth Doctor noted the Decayed Master to be his "sworn archenemy". (TV: The Deadly Assassin ^[+]Loading...["The Deadly Assassin (TV story)"]) The Twelfth Doctor later claimed Davros to be his archenemy much to the jealousy of Missy, the female incarnation of the Master. (TV: The Magician's Apprentice ^[+]Loading...["The Magician's Apprentice (TV story)"])

Amy Pond identified the Daleks as the Eleventh Doctor's archenemies. (TV: Victory of the Daleks ^[+]Loading...["Victory of the Daleks (TV story)"])

According to a dissenting account of his ninth life, the Doctor deemed his upcoming marriage to Emma to be news even his archenemy, the Master, needed to hear. (TV: The Curse of Fatal Death ^[+]Loading...["The Curse of Fatal Death (TV story)"])

Swarm claimed to the Thirteenth Doctor that he had been the Fugitive Doctor's archenemy. (TV: The Halloween Apocalypse ^[+]Loading...["The Halloween Apocalypse (TV story)"])