- See Blair for other articles with titles that contain, either by relationship or by coincidence, this character's surname.
- For the mirror universe counterpart, see Thomas Blair (mirror).
Thomas Blair (also known as Gil Morrison) was a male Human Starfleet officer in the 23rd century. By 2268 he was fifty years old and his fifty first birthday was later that year. (VAN novel: What Judgments Come)
By 2267, Blair had risen to the rank of captain, and assigned as commanding officer of the USS Defiant. That year, the IKS Kretoq, under Romulan control, played a game of cat and mouse with the Defiant by releasing probes while cloaked. Blair's reaction to the seemingly random appearance of the probes was to immediately think of the Romulans or Klingons as the perpetrators. After the incident, he filed a report on the incident that was reviewed by admirals at Starfleet Command. (ST novella: The First Peer)
In 2268, he was still captain of the Defiant when it became trapped in interphase. The effects caused mass insanity among the crew, who eventually began killing one another. Blair's neck was broken during a struggle with another officer. Eventually, a landing party from the Defiant's sister ship, the USS Enterprise, arrived and discovered the now-dead crew, including the body of Blair, lying beneath his command chair, with another crewman's hands around his neck. However, they were unable to recover any of the bodies before the Defiant phased completely out of the universe. The Defiant emerged in 2155 in the mirror universe, it was captured, first by the Tholian Assembly, then by officers of the Terran Empire. Jonathan Archer raided the captain's wardrobe and donned a green tunic. (TOS episode: "The Tholian Web"; SCE eBook: Interphase, Part One; VAN novel: What Judgments Come; ENT episode: "In a Mirror, Darkly")