Biography
Her most iconic role was as the tormented but cunning and lethal Dr. Janice Lester, who nearly succeeds in permanently supplanting Captain Kirk in the episode "Turnabout Intruder", the 24th and final episode of the third season of the American science fiction television series Star Trek. Written by Arthur H. Singer (based on a story by Gene Roddenberry) and directed by Herb Wallerstein, it was first broadcast on June 3, 1969.
Smith remains, aside from William Shatner, the only other performer ever to play an incarnation of Captain James T. Kirk in any "Star Trek" television episode or film from the inception of the franchise until the 2009 film, Star Trek. She was also a member of the cast of The Interns.
Her first husband was actor Steve Reeves whom she married on January 31, 1955 while she was still a teenager. They divorced on September 4, 1956.
Source: Wikipedia
Filmography
Cast Credits

The Rockford Files
Character: Shirley Atwater
TV • 1974

Columbo
Character: Cathy Goodland
TV • 1971

The Interns
Character: Dr. Lydia Thorpe
TV • 1970

Hawaii Five-O
Character: Bella Morgan
TV • 1968

Hawaii Five-O
Character: Valerie Michaels
TV • 1968

The Outsider
Character: Joanne Jackson
TV • 1968

Mannix
Character: Violet Brooks
TV • 1967

Star Trek
Character: Dr. Janice Lester
TV • 1966

Scalplock
Character: Joanna Royce
MOVIE • 1966

The F.B.I.
Character: Christine
TV • 1965

The Wild Wild West
Character: Nadine Conover
TV • 1965

Run for Your Life
Character: Diana Burke
TV • 1965

Bonanza
Character: Sarah Sellers
TV • 1959

Bonanza
Character: Ann Purcell
TV • 1959

Teenage Doll
Character: Lori
MOVIE • 1957

Gunsmoke
Character: Marcie
TV • 1955