Rear Admiral Judith Hayman was a Starfleet flag officer in the 24th century. Hayman was an old friend of Curzon Dax, with the pair meeting during peace talks with the Klingons on Vulcan.

In 2371, Hayman ordered Captain Benjamin Sisko, Lieutenant Jadzia Dax and Doctor Julian Bashir to Earth, where she wanted them to investigate data records from what later turned out to be a five-thousand-year-old USS Defiant, which was somehow catapulted back in time and discovered in the Oort cloud of sector 001. Later, Hayman participated in a subspace conference with Starfleet admirals Alynna Nechayev, Hajime Shoji, Kirschbaum, and the Vulcan scientist Professor T'Kreng, about a possible Fury invasion. (DS9 - Invasion! novel: Time's Enemy)

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