Actress. Born Cheryl Lynn Phelps to former Broadway dancer Julie Phelps in New Orleans, she was later given the family name of Holdridge by her stepfather Herbert Charles Holdridge, a retired United States Army Brigadier General. As a child, she moved to Burbank, California, and later to Sherman Oaks, California, where she was raised. Shortly after the move, young Cheryl began to show an interest in show business and she soon started taking dance lessons, learning both tap and ballet. By the age of nine, she was dancing professionally and was soon cast in her first role in the New York City Ballet's version of "The Nutcracker." Her next big break came as an extra in the 1956 musical, "Carousel", which also starred Gordon MacRae and Shirley Jones. Her other credits include the films, "A Summer Place" (1959), "Life With Archie" (1962), "The Flintstones In Viva Las Vegas" (2000), and many television guest appearances including, "Westinghouse Playhouse", "Bringing Up Buddy", "The Adventures Of Ozzie & Harriet", "The Rifleman", "The Many Loves Of Dobie Gillis", "The Donna Reed Show", "The Dick Van Dyke Show", "My Three Sons", "Bewitched", "Dr. Kildare", and "Wagon Train." Although she had many credits to her name, it would be her roles as one of the mouseketeers in the original "Mickey Mouse Club" from 1956 to 1959, and that of Julie Foster on the classic television series, "Leave It To Beaver" from 1959 to 1963, that audiences would most remember her for. While part of the Mickey Mouse Club she appeared in many of the show's serials and became known as the girl with "the Million Dollar Smile." After the series ended she attended the Van Nuys High School, and later Grant High School in Los Angeles, where she graduated with the winter class of 1961. Following a live reunion tour of Australia with the Mouseketeers and some more acting work she retired from show business to marry wealthy playboy Lance Reventlow, the son of Woolworth heiress Barbara Hutton. The couple were married from November 7, 1964 until his death in a plane crash on July 24, 1972. After his death she married Manning J. Post, who passed away in 2000. A long-time supporter of environmental causes and charities, she spent her final years becoming more active in fund raising events, the most recent one being held in Beverly Hills on October 8, 2008. She passed away from lung cancer in Santa Monica, at the age of 64.