Harry MacDonald
Harry MacDonald was the editor for most of the first series of the supermarionation television series Thunderbirds. This included the episode The Man from MI.5, which crossed over into the Doctor Who universe by featuring an appearance by the Daleks.
MacDonald was also involved in several other creations of Gerry Anderson which shared crossovers with the DWU. He had earlier been an editor for several episodes of Stingray and went on to edit episodes of both Captain Scarlet and the Mysterons and Joe 90. His final (and only other) credits were on 1970 and 1971 instalments of the Anderson live-action series UFO, which never crossed over with Doctor Who.