For additional meanings of "Cox", please see Cox.

Doctor Cox was one of the Federation psychologists who treated Dukat following his capture in 2374.

He encouraged Dukat to talk about his daughter, Tora Ziyal, whenever possible, since her death caused his descent into mental instability. Prior to stardate 51408.6, Dr. Cox and his colleagues declared that Dukat had made a "remarkable recovery", allowing him to appear before a Federation Special Jury. (DS9: "Waltz")

This character was only mentioned in dialogue.