Marlo Thomas is an American actress, author, and philanthropist best known for two things: playing the aspiring actress Ann Marie on the hit 1960s sitcom That Girl, and creating Free to Be… You and Me, the landmark children's project that challenged gender stereotypes. Born Margaret Julia Thomas in Detroit, Michigan, on November 21, 1937, she is also the daughter of entertainer Danny Thomas, the founder of St. Jude Children's Research Hospital, and the wife of talk-show pioneer Phil Donahue. Her career spans television, film, stage, writing, and decades of activism on behalf of women and children.
Who Is Marlo Thomas?
Before she was famous in her own right, Marlo Thomas was famous by association. Her father, Danny Thomas, was one of the most beloved entertainers of his generation, the star of Make Room for Daddy and the driving force behind St. Jude Children's Research Hospital, the pediatric research hospital he founded as a fulfillment of a spiritual promise. Her mother, identified in various sources as Rose Marie Cassaniti or Rose Marie Thomas (some sources shorten this to "Rosie" — a small inconsistency that appears across biographical accounts), raised the family in Beverly Hills, California, after the Thomases moved west.
Marlo was born in Detroit on November 21, 1937, but grew up in the heart of the entertainment industry. Her birth name, according to public sources, was Margaret Julia Thomas. The name "Marlo" — the stage name she chose for herself — became so completely her identity that many fans today don't realize it wasn't the name she was born with. The story behind that choice, and the way it intersected with her departure from That Girl, is told in the OBOMEDIA podcast Biographies - Famous Lives in the episode "The name Marlo Thomas chose made her fall from That Girl".
Thomas graduated from the University of Southern California in 1959. Rather than coasting on her family name, she spent the early 1960s doing what most working actors do: guest roles on television, small parts, and steady auditioning. She was determined to build a career on her own terms, and by the middle of the decade that persistence paid off in a way that would change television.
That Girl and a New Kind of TV Heroine
In 1966, Marlo Thomas landed the role that defined her career: Ann Marie on That Girl. The premise was genuinely unusual for its time. Ann Marie was a young, single woman who had moved to New York City to pursue her dream of becoming an actress. She was not someone's wife. She was not someone's mother. She was not living at home waiting for life to happen to her. She had a career ambition of her own, an apartment of her own, and a boyfriend, Don Hollinger, whom she dated without rushing toward marriage.
Audiences embraced the show, and Thomas became widely famous. The series ran from 1966 to 1971, and its cultural footprint went well beyond ratings. That Girl is often remembered as one of the first sitcoms to center an independent young woman chasing a professional dream — a small but significant step in television's slow evolution away from portrayals of women defined solely by domestic roles. Thomas was not just the star; she was closely involved in shaping the character and the show's direction, and her insistence that Ann Marie remain her own person — most famously, ending the series with Ann Marie not married off — reflected her own convictions about how women should be represented on screen.
The decision to walk away from That Girl at the height of its success was a bold one. Thomas has been open over the years about the fact that her identity and her name were tangled up in that decision — a story explored in depth in the podcast episode mentioned above.
Free to Be… You and Me
If That Girl made Marlo Thomas famous, Free to Be… You and Me made her influential. In 1972, Thomas created the children's album and media project that would become one of the most beloved educational works of the decade. The idea was simple and radical for its time: children should be free to be themselves, regardless of gender. Boys could cry. Girls could grow up to be anything. The project rejected the rigid, stereotype-driven messages that dominated children's media at the time.
Thomas assembled an extraordinary roster of talent to contribute, and the project grew into a phenomenon. In 1974, the television version of Free to Be… You and Me won an Emmy Award for Outstanding Children's Special. For generations of children — and, crucially, their parents — the project became a touchstone, and it remains one of Thomas's proudest achievements.
Activism and the Ms. Foundation
Thomas's activism was never a celebrity side project. In 1973, she co-founded the Ms. Foundation for Women alongside Gloria Steinem, Letty Cottin Pogrebin, and Patricia Carbine. The foundation became a major force in supporting women's economic security, leadership, and safety, and Thomas remained closely associated with its work for decades.
Her advocacy also extended to her father's legacy. Following Danny Thomas's founding of St. Jude Children's Research Hospital, Marlo Thomas became one of the institution's most prominent champions, dedicating enormous energy to fundraising and public awareness for the hospital's mission of treating children regardless of families' ability to pay. For many Americans, her decades of televised appeals and outreach on behalf of St. Jude are as familiar as her acting work.
Awards and Recognition
Thomas's post-That Girl career has been remarkably decorated. In 1986, she won a lead-actress Emmy for the television drama Nobody's Child, proof that her range extended well beyond comedy. Her work across television, stage, film, and publishing has earned her a place among the most respected figures in American entertainment.
The highest civilian honor came in 2014, when she received the Presidential Medal of Freedom, the United States' highest civilian award, in recognition of her contributions to entertainment and her decades of activism and philanthropy. More recognition has continued to follow: in 2026, the American Advertising Federation listed her as a recipient of its President's Award for Special Lifetime Contributions to Advertising, honoring her long career in media and public service campaigns.
Timeline of Marlo Thomas's Life and Career
- 1937: Born Margaret Julia Thomas in Detroit, Michigan.
- 1959: Graduated from the University of Southern California.
- Early 1960s: Began acting, including early television guest roles.
- 1966–1971: Starred as Ann Marie in That Girl, which made her widely famous.
- 1972: Created the children's album and media project Free to Be… You and Me.
- 1973: Co-founded the Ms. Foundation for Women with Gloria Steinem, Letty Cottin Pogrebin, and Patricia Carbine.
- 1974: The TV version of Free to Be… You and Me won an Emmy for Outstanding Children's Special.
- 1986: Won a lead-actress Emmy for Nobody's Child.
- 2014: Received the Presidential Medal of Freedom.
- 2026: The American Advertising Federation listed her as a recipient of its President's Award for Special Lifetime Contributions to Advertising.
Personal Life: Phil Donahue and the Thomas Family
In her personal life, Marlo Thomas has been married since 1980 to Phil Donahue, the pioneering talk-show host who transformed daytime television with his issue-driven, audience-participation format. The two are frequently described as one of the most enduring couples in American media, and their long marriage has been the subject of warm attention in multiple biographies of both figures.
Her family legacy remains central to her identity. Danny Thomas's founding of St. Jude Children's Research Hospital is one of the great philanthropic stories in American history, and Marlo, along with her siblings, has carried that mission forward. Her mother, Rose Marie — whose name appears in slightly different forms across sources, as noted above — was the quiet anchor of the Thomas household throughout Danny's demanding career.
Why Marlo Thomas Still Matters
Marlo Thomas occupies an unusual position in American cultural history: she is simultaneously a television star, a feminist pioneer, a children's advocate, and a philanthropist. What makes her story compelling is how deliberately each chapter built on the last. That Girl challenged television's assumptions about what a young woman's story could be. Free to Be… You and Me took those same ideas to children, at an age when ideas about gender take root. The Ms. Foundation turned them into institutional support for women. Her work for St. Jude turned fame into a direct force for good.
She remains widely described as an influential figure in television and women's advocacy, and her work is still cited whenever the history of women on television is discussed. Few entertainers can claim a career that spans a groundbreaking sitcom, an Emmy-winning children's classic, an acting Emmy, a Presidential Medal of Freedom, and decades of hospital philanthropy — but Marlo Thomas can.
For those who want to go deeper into her story — particularly the meaning behind the name she chose and how it connects to her decision to leave That Girl — the podcast episode "The name Marlo Thomas chose made her fall from That Girl" from Biographies - Famous Lives on OBOMEDIA covers that chapter in detail.
Frequently Asked Questions About Marlo Thomas
What is Marlo Thomas's real name?
Public sources consistently identify her birth name as Margaret Julia Thomas. She was born on November 21, 1937, in Detroit, Michigan, and raised in Beverly Hills, California. "Marlo" is the professional name she adopted — a choice that became central to her identity as a performer and that she has discussed in interviews over the years.
Who are Marlo Thomas's parents?
Her father was Danny Thomas, the entertainer and founder of St. Jude Children's Research Hospital, best known as the star of Make Room for Daddy. Her mother was Rose Marie Cassaniti, also referred to as Rose Marie Thomas (and sometimes simply "Rosie" in some accounts — a minor inconsistency that appears across biographical sources).
Who is Marlo Thomas married to?
Marlo Thomas has been married to Phil Donahue, the pioneering talk-show host, since 1980. Their marriage is one of the longest-lasting in American media, and both have spoken publicly over the years about their life together, including co-authoring work on marriage and relationships.
What is Marlo Thomas best known for?
She is best known for two things above all: starring as Ann Marie on the 1966–1971 sitcom That Girl, and creating the 1972 children's project Free to Be… You and Me, which won an Emmy in 1974. She is also widely recognized for her Emmy-winning performance in Nobody's Child (1986), her co-founding of the Ms. Foundation for Women in 1973, her decades of advocacy for St. Jude Children's Research Hospital, and the Presidential Medal of Freedom she received in 2014.