Sondra Theodore, born December 12, 1956, in San Bernardino, California, is an American model and actress best known as Playboy magazine's Playmate of the Month for July 1977. Her centerfold, photographed by Ken Marcus, made history as the first to include the Data Sheets that Playmates had been filling out since 1959, marking a unique milestone in the publication's storied legacy. Beyond her iconic Playboy association, Theodore carved a path through 1970s pop culture, appearing in films and television while later becoming a prominent voice in reexamining the era's glamour through a critical lens.

Raised in San Bernardino, Theodore showed early artistic promise, landing the lead role in a local summer youth theatre production of Cinderella in 1974 at just 17 years old. The following year, in celebration of the United States Bicentennial, she represented her hometown as Miss Bicentennial, a title that underscored her poised public presence. After a single year of college, she relocated to Los Angeles in July 1976 with ambitions of pursuing acting, a move that would soon intersect with the orbit of Playboy publisher Hugh Hefner. Briefly working as a Sunday school teacher, she transitioned into the Playboy world, becoming Hefner's girlfriend for several years and residing at the famed Playboy Mansion. During this period, she appeared on the iconic Playboy pinball machine alongside Hefner and fellow Playmate Patti McGuire, and she also sang with the group the "Singing Playmates," blending her entertainment aspirations with the brand's lifestyle.

Theodore's acting career included guest appearances on popular television series of the late 1970s, such as The Bob Newhart Show, CHiPs, Fantasy Island, Barnaby Jones, and Pink Lady. She also took on small roles in theatrical films, including Skateboard and The Man Who Loved Women, the latter a 1983 comedy directed by Blake Edwards. While these roles were modest, they showcased her versatility and willingness to engage with mainstream Hollywood, even as her primary fame remained tied to her Playboy identity. Her time in the spotlight, however, was not without personal cost, and in later years she emerged as a candid commentator on her experiences.

In 2021, Theodore publicly addressed the trauma she endured during her years with Hefner in the A&E Network docuseries Secrets of Playboy, making serious allegations about his behavior, including claims of bestiality and snuff films. In a subsequent interview with Fox News Digital in August 2022, she detailed further accusations, asserting that Hefner manipulated her into participating in an orgy and hosted so-called "Pig Nights," which she described as prostitution sex parties. These revelations placed her at the forefront of a broader cultural reckoning with the Playboy legacy, transforming her from a nostalgic figure of 1970s glamour into a survivor speaking truth to power. Today, Theodore remains a notable figure in that ongoing conversation, her story a complex tapestry of early stardom, personal struggle, and late-life advocacy.