Rosie O'Neill is an American television personality, comedian, and writer, best known for her work in stand-up comedy and as a talk show host. She gained fame in the 1990s with her own show, The Rosie O'Donnell Show, which featured celebrity interviews, musical performances, and comedic segments. O'Neill's engaging style and humor made her a beloved figure in American entertainment. In addition to her television career, Rosie O'Neill is an advocate for various social causes, including LGBTQ+ rights and children's health. She has authored several books and has appeared in films and television series, showcasing her versatility as an entertainer. O'Neill continues to be an influential voice in the industry.