Dr. Theodore Magnus was a character from the Captain Scarlet And The Mysterons episode Operation Time. He was a Doctor working in London, and possessor of a highly sophisticated device called the Cerebral Pulsator, a device that improves the safety of brain surgery. After operating on Morgan, Magnus was pursued by Captain Black, who shot his tyre with a gun, running him off the road and down a cliff, killing him. Magnus was reconstructed, in an effort to kill time.
Theodore Magnus was voiced by Martin King.