Tabrenilsodvoravitas

, or T, was a member of the First Wave who left House Military and became mercenary working for Huxley.

T came from House Dvora. He was killed hundreds of times by his people so that each part of his body would reform to perfectly meld with a timeship. T became the only pilot to survive the conflict on Mohandassa when he was forced to abandon the ship in time eddies and flee in his malformed body. He began working for Huxley shortly afterwards.

T was present at the Utterlost Accords. He and Wade worked together for three years on an undercover mission. He retired from mercenary work about a decade after the undercover mission. (PROSE: A Farewell to Arms)

Behind the scenes
Nilso, known as such on 4chan and 8chan, was a user of Doctor Who General, or /who/, a "general" thread in which "/who/sers" were encouraged to discuss the DWU. Nilso, according to many posters, had a very distinctive posting style, and as such the phrase "t. Nilso" became commonplace as an in-joke within /who/, attributing different posts to the anonymous user. The author of the story, Nate Bumber, went under the tripcode n8 and became acquainted with the user Nilso, using his namesake for A Farewell to Arms.