In his early days as an officer, he was friends with the fathers of Robert Dalton and Ross Brimmicombe-Wood, Will and Archie. Coincidentally, there sons would also become colonels and take command of UNIT. (PROSE: Project Valhalla) After he departed from UNIT, he transferred to the Forge - which had a competing remit with his old employers - and was Deputy Director sometime before 2002. In 2004, Crichton retired and was assassinated by his successor, Nimrod. (PROSE: Project: Valhalla) The Forge named their 2025 headquarters the Crichton Building. (AUDIO: Project Destiny)