1950s

Moore made her television debut in the November 8, 1956 episode of Lux Video Theatre. The following year, she made her film debut in the 1957 crime drama Appointment with a Shadow. Later that year, she appeared in episodes of Goodyear Theatre and Harbormaster, along with another film, Slim Carter. In 1958, she had a small role in the film noir classic Touch of Evil with Orson Welles, Charlton Heston, Janet Leigh, and Marlene Dietrich, followed by more substantial roles in the horror film Monster on the Campus and the Western Ride a Crooked Trail.

From 1958 to 1959, Moore landed guest spots on television, including Westinghouse Studio One, Suspicion, The Rough Riders, Bourbon Street Beat, Bat Masterson, The Real McCoys, Maverick, The Rifleman, and Riverboat. She made a guest appearance on Perry Mason as the title character in the 1958 episode "The Case of the Terrified Typist".

1960s

During the 1960s, Moore continued her career guest-starring on numerous television shows in addition to film appearances. From 1960 to 1961, she guest-starred on Five Fingers, The Rebel, Hong Kong, The Untouchables, 77 Sunset Strip, Going My Way, and Empire.

In 1962, Moore appeared as Miss Precious in Walk on the Wild Side with Jane Fonda, Barbara Stanwyck, and Capucine, followed by the musical Follow That Dream with Elvis Presley. That same year, Moore appeared in four episodes of The Andy Griffith Show as Peggy "Peg" McMillan, Sheriff Taylor's love interest, and guest starred on the Route 66 episode "There I Am – There I Always Am". In 1963, she co-starred in Son of Flubber and was cast in The Man from Galveston, intended as the pilot for Temple Houston. Also that year, she made a second guest appearance on Perry Mason as Grace Olney in "The Case of the Reluctant Model". In 1964, she guest-starred on Bob Hope Presents the Chrysler Theatre.

From 1965 to 1967, Moore guest starred on The Man from U.N.C.L.E., The Rogues, My Three Sons, Peyton Place (starring Moore's then-husband, Ryan O'Neal), Daniel Boone, Cowboy in Africa, and Iron Horse. In 1967, Moore appeared as Daphne Harper, a snob and former college beauty queen chum of Darrin's, in the "Charlie Harper, Winner" episode of Bewitched. During the time, Moore also had an uncredited role as Angie, the widow of Jesse Cole, in Nevada Smith starring Steve McQueen.

Throughout the 1950s and 1960s, Moore also made multiple appearances on The Millionaire, The United States Steel Hour, Route 66, Wagon Train, Alfred Hitchcock Presents (and The Alfred Hitchcock Hour), Hawaiian Eye, Alcoa Premiere, Gunsmoke, The Fugitive, The Virginian, The High Chaparral, and The F.B.I.

1970s and 1980s

During the 1970s, Moore continued with guest roles on Nanny and the Professor, The Governor & J.J., and McCloud. In 1973, she appeared in the television adaption of the 1954 film Three Coins in the Fountain, also starring Yvonne Craig and Cynthia Pepper. In 1974, she appeared on The Waltons in the episode entitled "The Departure". In 1975, she co-starred in the feature film The Hindenburg. The next year, she guest-starred on Petrocelli and The Blue Knight and made two appearances on Bronk.

By the late 1970s, Moore's career had begun to wane owing to personal problems. Her only two on-screen appearances after 1976 were in a supporting role in the 1980 television film Scout's Honor starring Gary Coleman and a bit part in the 1986 Australian film Run Chrissie Run!

Hearing loss

In the early 1960s, Moore became deaf as a result of otosclerosis, which her doctor said resulted from a deposit of calcium in her middle ear. Moore said that she had to read lips to understand what people were saying. An operation restored her hearing in 1962.^[3]

Marriages and children

On April 3, 1963, Moore married her third husband, actor Ryan O'Neal.^[4] The couple had two children: Tatum O'Neal and Griffin O'Neal.^[5] The marriage was tempestuous and the couple separated in early 1966.^[6] In February 1967, their divorce became final.^[2]

In February 1975, she married roofing contractor Gary L. Reeves.^[7]

Drug and alcohol addiction

In 1970, Moore checked into the Camarillo State Hospital for psychiatric treatment. The next year, she was arrested for drunk driving after getting into a fight while she and their children were visiting O'Neal's Malibu home. After her arrest, she lost custody of her children.^[2]

By the late 1970s, she was being supported financially by her daughter, Tatum, who had become an Academy Award-winning actress at age 10 and one of the highest-paid child stars of the era. The children were still in Ryan O'Neal's custody and, despite treatment, Moore continued to be addicted to drugs and alcohol. As a result, she was arrested five times for DUI during the 1980s.^[2]

Death

Moore was diagnosed with lung cancer in 1996. On November 22, 1997, she died 12 days after her 63rd birthday. Her daughter Tatum was by her side at the time of her death. Moore's ashes were taken to her home town of Americus, Georgia.^[2]