Crewman Moody was a male Human Starfleet enlisted crewmember in the 23rd century. He served in the command division 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")