American actress who played Dr Helen Noel, the Enterprise psychiatrist who accompanies Kirk to the Tantalus penal colony, in the Original Series episode Dagger of the Mind.
Marianna Hill is an American actress whose film credits include Medium Cool (1969), High Plains Drifter (1973) and The Godfather Part II (1974), in which she played Deanna Corleone.
In the first-season episode Dagger of the Mind she played Dr Helen Noel, a member of McCoy's staff with training in rehabilitative therapy. Noel beams down with Kirk to inspect Dr Tristan Adams's colony, where the captain is subjected to the neural neutraliser and made to believe he is in love with her. She crawls through the ventilation ducts to cut the colony's power and so allows Spock to beam down with a security team.
Hill was a frequent guest in 1960s and 1970s television drama.