Jill St. John, born Jill Arlyn Oppenheim on August 19, 1940, in Los Angeles, California, is an American retired actress best known for her role as Tiffany Case, the first American Bond girl in the 1971 James Bond film "Diamonds Are Forever."

She began her career as a child actress, making her stage debut at the age of five and her television debut at seven. Throughout her career, she appeared in numerous films and television shows, including "Holiday for Lovers," "The Lost World," "Tender Is the Night," "Come Blow Your Horn," for which she received a Golden Globe nomination, "Who's Minding the Store?," "Honeymoon Hotel," "The Liquidator," "The Oscar," "Tony Rome," "Sitting Target," and "The Concrete Jungle."

On television, she was featured in popular shows such as "Batman," "The Big Valley," "Rowan & Martin's Laugh-In," "Hart to Hart," "Vega$," "The Love Boat," "Fantasy Island," "Magnum, P.I.," and "Seinfeld."

Jill St. John was almost equally famous for her high-profile social life and frequent romantic associations with prominent stars, including Jack Nicholson, David Frost, Joe Namath, Bill Hudson, Roman Polanski, and even Henry Kissinger.

She has been married four times, to Neil Dubin, Lance Reventlow, Jack Jones, and currently to actor Robert Wagner, whom she has known since she was 18 years old. They share credits on nearly a dozen screen and stage productions, notably the miniseries remake of "Around the World in 80 Days."

Raised in Encino, she was a member of the Children's Ballet Company with Natalie Wood and Stefanie Powers, both of whom would later marry or co-star with Robert Wagner. Her parents, Edward Oppenheim, a restaurateur, and Betty Oppenheim, a philanthropist, married in 1934.

Her maternal grandparents were Russian, of partial Jewish descent, while her paternal great-great-grandparents emigrated from Hessen, Germany, and Amsterdam.

Her lifestyle outside of acting includes interests in orchid growing, horseback riding, and skiing. She has also authored a cookbook titled "The Jill St. John Cookbook." Despite her glamorous Hollywood life, she has managed to maintain a relatively private and contented life with her husband Robert Wagner.