Teri Rosason was a Jedi Master affiliated with the Jedi Order during the High Republic Era. She was a human female and a member of the Jedi High Council.
Due to her involvement in a sensitive diplomatic undertaking, Rosason was unable to attend the Council's meeting concerning participation in the Galactic Republic's campaign against the Nihil marauder group. Subsequently, upon Master Cohmac Vitus's return to Coruscant, Rosason was among the three High Council members who welcomed him and were informed of the presumed death of Jedi Knight Dez Rydan.
Rosason, though diplomatic when interacting with those outside the Order, had the capacity to be argumentative and judgmental regarding the actions of other Jedi. She expressed disapproval of Avar Kriss's mission targeting the Drengir, believing that Jedi operating on the frontier should seek the council's input prior to engaging in aggressive operations.
The initial mention of Teri Rosason occurred in the 2021 novel The High Republic: Light of the Jedi, with her first appearance taking place in The High Republic: Into the Dark. In Light of the Jedi, the character was initially referenced using he/him pronouns, which were subsequently corrected to reflect Rosason's proper pronouns of she/her. Her first name was revealed in The High Republic: The Rising Storm.