Dean Howard, later Dean Lethbridge-Stewart, was the husband of Conall Lethbridge-Stewart.
Dean met Conall at university in 2011, and the two began dating. They had their second date at Pizza Express. (PROSE: Acceptance, and then Understanding)
By November 2017, Dean lived with Conall in London. They had an adopted daughter, Hannah Lethbridge-Stewart. (PROSE: Avatars of the Intelligence)
Dean, Conall and Hannah visited Conall's family in Ogmore-by-Sea for Christmas 2017. (PROSE: The Christmas Cracker Conundrum!)