Trekipedia

Compton

Compton was part of a landing party which answered a distress call from the planet Scalos in 2268. When the young officer was exposed to the contaminated Scalosian water on the planet’s surface, he was phase-shifted to the level of the Scalosians in order to be used as a mate. The process quickly caused Compton to become passive and forget his Starfleet training; he tried to stop Captain Kirk, who had also been phase-shifted, from preventing the Scalosian sabotage of the U.S.S. Enterprise NCC-1701. Compton’s loyalty resurfaced when his captain’s life was threatened by one of the alien intruders. Unfortunately, Compton was injured by one of the Scalosians while leaping to Kirk’s defense; in his altered state, the smallest injury could prove fatal, and the lieutenant’s susceptibility to cellular damage caused him to rapidly age and die.^[1]

Portrayed by Geoffrey Binney.