Mike Sussman is a writer who was a writer and story editor on Star Trek: Voyager, and a writer and producer on Star Trek: Enterprise, and was credited on-screen with writing or co-writing more than thirty episodes of the franchise.
History and specifics
Perhaps his most popular and acclaimed Trek work was for the two-part ENT episode "In a Mirror, Darkly". Sussman also prepared detailed in-universe biographies of Jonathan Archer and Hoshi Sato for the installment, along with a timeline of early Federation history, which were briefly glimpsed on-screen in the episode.
Outside of television, Sussman contributed the story for a novella following up on the events of "In a Mirror, Darkly," published by Pocket Books in 2007.