Ann Blyth, a Hollywood actress best known for her Oscar-nominated role as the manipulative teenage daughter in the 1945 film "Mildred Pierce," has died in Rancho Santa Fe, California. She was 98. The announcement came from her family, though no further details on the cause of death were provided.

Blyth earned an Academy Award nomination for best supporting actress at the age of 17 for portraying Veda Pierce, the self-centered daughter of Joan Crawford’s character. The film, adapted from James M. Cain’s 1941 novel, features Crawford as a single mother who rises from working-class roots to achieve business success in order to satisfy her daughter’s relentless social ambitions. Blyth’s portrayal of Veda—a spoiled, manipulative figure who has an affair with and ultimately kills her stepfather—was widely praised for its intensity. Notably, Joan Crawford personally supported Blyth’s casting by appearing with her in the screen test, a rare gesture for a star of Crawford’s stature that Blyth credited with securing the role.

After "Mildred Pierce," considered her career highlight, Blyth appeared in approximately two dozen films over the next dozen years, spanning multiple genres. Her work included comedies such as “Mr. Peabody and the Mermaid” (1948) alongside William Powell and “Top O’ the Morning” (1949) with Bing Crosby, as well as dramas like “Killer McCoy” (1947) with Mickey Rooney and “Another Part of the Forest” (1948), adapted from a Lillian Hellman play. Blyth also ventured into musicals, including “The Great Caruso” (1951) featuring Mario Lanza and the 1955 adaptation of “Kismet” with Howard Keel. Her final film role was in 1957’s “The Helen Morgan Story,” a musical biopic also directed by Michael Curtiz, who helmed "Mildred Pierce."

Despite critical success, Blyth retired from feature films at age 30 to focus on her family. She had married James McNulty, an obstetrician and gynecologist and brother of actor Dennis Day, in 1953. The couple remained married until McNulty’s death in 2007 and had five children together. Blyth also made occasional television appearances, including a 1964 episode of “The Twilight Zone” and a 1985 guest role in “Murder, She Wrote,” marking the end of her screen career.

Born Anne Marie Blythe on August 16, 1927, in Mount Kisco, New York, she was the daughter of an English-born butler and an Irish mother. Following her parents’ early divorce, Blyth was raised by her mother in modest circumstances during the Depression. She began performing at a young age, acting in radio plays and singing with the San Carlo Opera Company, and attended the Professional Children’s School in New York City. Her stage debut came in 1941 in the Lillian Hellman play "Watch on the Rhine."

Although she initially appeared in lighthearted musicals and comedies, Blyth’s standout role in “Mildred Pierce” secured her place in Hollywood history as one of the era’s memorable supporting actresses. Film historians have noted that while the film prominently features Crawford, Blyth’s performance remains central to its enduring impact, embodying the archetype of the "film noir daughter from hell."