Marlo Thomas has built one of the most multifaceted and impactful careers in entertainment and philanthropy. Born Margaret Julia Thomas on November 21, 1937, in Detroit, Michigan, she celebrates her 88th birthday this year. As an actress, producer, author, and passionate activist, Thomas has left an indelible mark on television, literature, and social causes, particularly through her groundbreaking work for women’s rights and children’s health.

The daughter of legendary comedian and entertainer Danny Thomas, Marlo grew up surrounded by show business but forged her own path. After studying at the University of Southern California, she began acting in regional theater and landed early television roles. Her breakthrough came with the sitcom That Girl (1966–1971), in which she starred as Ann Marie, an aspiring actress living independently in New York City. The series was revolutionary for its time, portraying a single woman pursuing her career and dreams without being defined by marriage. Thomas also served as an executive producer, giving her significant creative control — a rare achievement for a woman in the 1960s.

Beyond That Girl, Thomas created the groundbreaking children’s project Free to Be… You and Me in 1972, a book, album, and Emmy-winning television special that promoted gender equality, self-expression, and acceptance. It became a cultural touchstone for generations. She has authored several bestselling books, including her memoir Growing Up Laughing and works on reinvention and marriage. Thomas has continued acting in films, television movies, and stage productions while earning multiple Emmy, Golden Globe, and Grammy awards.

Her philanthropic work is equally profound. As National Outreach Director for St. Jude Children’s Research Hospital — founded by her father — Thomas has dedicated decades to raising awareness and funds for pediatric cancer and catastrophic diseases. She has also been a founding member of the Ms. Foundation for Women and a vocal advocate for women’s rights and social justice. Married to talk show host Phil Donahue from 1980 until his passing in 2024, Thomas balanced a high-profile partnership with her own ambitious career.

At 88, Marlo Thomas stands as an inspiring figure whose artistic achievements and humanitarian efforts have touched countless lives. Fans and admirers marking her birthday celebrate a woman who has consistently used her platform to empower others, challenge norms, and create lasting positive change.