(written from a Production point of view)
Ena Hartman (born 1 April 1935; age 82) is an actress who appeared uncredited as a crewman in "The Corbomite Maneuver", the first regular episode of Star Trek: The Original Series. Her appearance has yet to be confirmed (it is possible that it was cut from the finished episode). She was originally considered for the role of Lieutenant Uhura, before Nichelle Nichols was cast. (These Are the Voyages: TOS Season One)
She was part of the ensemble cast of the 1970 motion picture Airport, as was Whit Bissell. However, she is probably best known for her role as Katy Grant on the short-lived ABC series Dan August.