Stewart Moss

Actor (Joe Tormolen and Hanar) — The Original Series

American actor (1937–2017) who played the doomed crewman Joe Tormolen in The Naked Time and the Kelvan Hanar in By Any Other Name.

Stewart Moss was an American actor, writer and director, born in 1937, who was a regular television guest player from the 1960s to the 1980s and starred in the horror film The Bat People (1974).
In The Naked Time he played Lieutenant Joe Tormolen, who removes a glove on the frozen station on Psi 2000 and carries the infection back to the Enterprise. Overcome by despair, he wounds himself with a table knife in the recreation room and dies in sickbay. Moss returned in the second season as Hanar, one of Rojan's Kelvans, whom McCoy doses with stimulants until he becomes irritable and insubordinate.
Moss died in 2017.