When Macbeth joined UNIT, he was made a lieutenant and was in charge of the Paranormal Division investigating psychics and similar phenomena. In 1968, he removed the Seventh Doctor while he was possessed by Huitzilin from a house in London and secreted him away in an unlisted UNIT facility somewhere in England. When Ace removed the Doctor from the facility, before leaving she broke Macbeth's nose. The Paranormal Division was shut down shortly after this event and Hamlet Macbeth was dishonourably discharged from UNIT in December 1968. (PROSE: The Left-Handed Hummingbird, COMIC: Change of Mind)