McCray was a male Human Starfleet security officer in the 24th century. McCray became the constable on Deep Space 9 after the Dominion War.
In 2380, McCray was among the thirty-two people killed when the Cult of the Pah-wraiths bombed the Bajoran temple on Deep Space 9. Julian Bashir had tried to save McCray's life but McCray died from the injuries he sustained in the blast. (DS9 short story: "The Dreamer and the Dream")