A staffer at the Massachusetts State House, Mr. Daniels may have worked in the human resources department. He was involved in a love triangle between himself, Susan M. and the Treasurer Robert Yemelin. Dating her after being told by Robert how he feels about her. In an effort to spend more time with her, Mr. Yemelin tried to separate the two by inviting her to a baseball game and not taking Daniels. This however didn't work, as she chose a previous dentist appointment over the game.
Despite being a less than reputable fellow (Frankie refers to him as an "asshole."), he was among those who planned the birthday party for Robert. He was also a known drunkard and would routinely urinate on the walls of the bathroom.
T. Daniels is mentioned only in Fallout 4.