English actress (1936–1990) who played Leila Kalomi, the botanist who loves Spock, in the first-season Original Series episode This Side of Paradise.
Jill Ireland was an English actress, born in 1936, who began as a dancer and appeared in British films before moving to Hollywood. She made several guest appearances in The Man from U.N.C.L.E. and co-starred in many 1970s films with Charles Bronson, including The Mechanic and Hard Times.
In This Side of Paradise she played Leila Kalomi, a member of the colony on Omicron Ceti III who had known Spock on Earth six years earlier. She leads him to the spores that protect the colonists from Berthold rays; under their influence Spock is able to tell her he loves her, until Kirk provokes him back to himself.
Ireland died in 1990.