T

Ottilie Adrastea Hohenstaufen-Baumgartner, known as T by her classmates, is a transfer student, likely of German origin, who moved into Kyon and Haruhi's Class 2-5 at the start of year 1. She is a member of the Mystery Research Club, and visited the SOS Brigade in Seven Wonders Overtime. She is fond of nicknames herself, calling Haruhi "Haru" and Kyon "Kyam".

Her name was revealed in Tsuruya's Challenge.

Personality
Despite her name, T's native language is English. She is able to speak Japanese well enough to transfer to North High, but struggles with reading the language due to its three writing systems.

T supposedly has no supernatural powers, just like Kyon and other supporting characters. However, she has been able to interact with everyone in the SOS Brigade equally well.

Biography
T knows Tsuruya from a young age, having first met each other during one of their respective families' business trips. She has photographic evidence of their first encounter.

T makes her official debut in Seven Wonders Overtime, visiting the SOS Brigade to pass down literature related to the Mystery Research Club. She visits because Haruhi had run into her at lunch break and asked if the school had seven wonders. After borrowing a book from Yuki Nagato, she leaves.

In Tsuruya's Challenge, it is revealed that Tsuruya had been eavesdropping on the SOS Brigade's attempts to solve the mystery from the three e-mails she sent them, as part of her collaboration with the Mystery Research Club for their attraction at the upcoming cultural festival. She did so through a hair accessory that T wore while visiting the SOS Brigade again, this time staying behind when Haruhi arrives.