Natalie Norwick (28 May 1923 – 20 December 2007; age 84) was the actress who played Martha Leighton in the Star Trek: The Original Series first season episode "The Conscience of the King". She filmed her scenes on Tuesday 13 September 1966 on Desilu Stage 10.
Between 1962 and 1970, Norwick was married to William Sargent, who played her on-screen husband in "The Conscience of the King".
She was perhaps best known for playing Josette duPres Collins on the television series Dark Shadows from 1966 through 1967. She also appeared in such series as Perry Mason (with Seamon Glass, directed by Tony Leader), seven episodes of Have Gun – Will Travel (including an episode written by Gene Roddenberry and featuring Robert Fortier), and Starsky & Hutch (starring David Soul), and had roles in the films 23 Paces to Baker Street (1956) and Hidden Fear (1957).