Crewman Moody was a male Human Starfleet enlisted crewmember in the 23rd century. He served as a command division non-commissioned officer aboard the USS Enterprise from 2266 to 2268 under the command of Captain James T. Kirk, during the historic five-year mission.
In 2266, he became infected by polywater intoxication, bringing about a romantic interest in Yeoman Rand. Inspired by the lyrical ship-wide broadcasts of Kevin Riley, Moody persistently serenaded Rand with his own rendition of the song "I'll Take You Home Again, Kathleen." (TOS: "The Naked Time")
In 2268, he was present in the recreation room, when Kirk ordered a chicken sandwich and a coffee, infested with tribbles. (TOS: "The Trouble with Tribbles")
Moody was played by actor William Knight.