The film stars Bette Davis as Margo Channing, a highly regarded but aging Broadway star. Anne Baxter plays Eve Harrington, an ambitious young fan who insinuates herself into Channing's life, ultimately threatening Channing's career and her personal relationships. George Sanders, Celeste Holm, Hugh Marlowe, Barbara Bates, Gary Merrill, and Thelma Ritter also appear, and the film provided one of Marilyn Monroe's earliest important roles.