Rosie O'Donnell is an American comedian, actress, author, and television personality. She rose to fame as a stand-up comedian and actress, eventually hosting her own daytime talk show, "The Rosie O'Donnell Show," which was known for its family-friendly atmosphere and charitable giving. O'Donnell has also appeared in numerous films and television shows, including "A League of Their Own" and "The Flintstones." Beyond her entertainment career, she is a vocal advocate for LGBTQ+ rights, children's welfare, and gun control. She has authored several books, including autobiographies and children's books, and continues to be a prominent voice in media and activism.