N'Heydor was a male Centaurian in the 24th century, he was a Starfleet technician. N'Heydor was among the first Starfleet personnel assigned to Deep Space 9 when Starfleet took over operation of the former Cardassian space station in 2369. He served on the station until at least the next year when he was on duty in ops when the station faced a crisis after a group of young Horta began to eat it. (DS9 novel: Devil in the Sky)