Alternate reality
Admiral Gretchen Lui was a Starfleet officer in the alternate reality.
In 2258, Lui was one of the high-ranking Starfleet officers who judged over James T. Kirk's Starfleet Academy hearing for cheating during the Kobayashi Maru scenario. She was sitting next to Admiral Nensi Chandra. (Star Trek)
Lui was played by an unknown actress.