Major Mick Houghton was a UNIT officer.
Major-General Augustus Hayes told Alistair Gordon Lethbridge-Stewart that Houghton was a traitor and to kill him. Instead, Lethbridge-Stewart talked to him first and discovered he was investigating a conspiracy involving the Major-General. Hayes sent troops to capture them and Houghton was killed whilst attempting to escape. (PROSE: The Devil Goblins from Neptune)