Rosason was involved in a delicate diplomatic negotiation and was unable to step away, and as such could not attend the Council's meeting regarding whether to participate in the Galactic Republic's effort against the Nihil marauder organization. Later, Rosason was one of three High Council members to greet Master Cohmac Vitus on his return to Coruscant and hear the news of Jedi Knight Dez Rydan's apparent death.
While diplomatic when dealing with outsiders, Rosason could be combative and critical of Jedi actions. She was not pleased with Avar Kriss's mission against the Drengir and felt that Jedi on the frontier should consult with the council before taking aggressive actions.
Teri Rosason was first mentioned in the 2021 novel The High Republic: Light of the Jedi, and first appeared in the novel The High Republic: Into the Dark. Light of the Jedi referred to the character with he/him pronouns, which were later updated to use Rosason's correct pronouns of she/her. The character's first name was revealed in The High Republic: The Rising Storm.
- Star Wars: The High Republic: Chronicles of the Jedi
- "Launchpad" — Star Wars Insider 220
- Star Wars: The High Republic Character Encyclopedia