In an alternate timeline, Arlia was a female Deltan who served as ambassador to the Interstellar Coalition. In 2264, she attended the conference on Babel to consider United Earth's petition for membership. During this conference, she attempted to seduce Commander James T. Kirk, but was rebuffed. (Star Trek: Myriad Universes novel: A Less Perfect Union)

No counterpart to this character in the main timeline has been established.