Lieutenant commander Helman was a Starfleet officer who served as the second science officer aboard the USS Enterprise, under the command of Captain James T. Kirk, in the 2260s.
History[]
Helman was tall and thin with close-cropped blond hair and a protuberant Adam's apple.
During the Enterprise's mission to Kyros in 2269, he stood in for Spock on bridge duty. (TOS novel: Spock, Messiah!)