Trivia

One of his last appearances was as the main guest star of the 25th anniversary special Silver Nemesis: Part One (1988). By his own admission, Diffring had never seen Docteur Who (1963), even when he was living in England, and accepted the part so that he could be in London to see the Wimbledon tennis championship.

Anton Diffring is the brother of the artist Jacqueline Diffring.

According to an interview with German actor Arthur Brauss in 2002 at the Terrorverlag, AIDS was the true cause of Diffring's death.

He was favored for the roles of Dr. Hans Fallanda and Dr. Bukovsky in Lifeforce - L'étoile du mal (1985).