Betty Alexander Rizzo, known mononymously by her surname Rizzo is one of the main characters in the movie Grease. Tough and sarcastic leader of the Pink Ladies, she does not like to hang out with Sandy because Sandy is not tough enough. She smokes, drinks, and does not care what others think of her. Rizzo is also a girl with a "reputation". The girlfriend of Kenickie.
In the 1978 movie, she is played by Stockard Channing
In the 1994 Broadway revival, she is played by Rosie O'Donnell
Rizzo is slim and of average height. She has brown eyes, curly and short brunette hair, and a fashionable rockabilly sense of style. She is not as bright and cheerful with her outfits as the other Pink Ladies, and often wears revealing and tight apparel.
Rizzo is saucy, as seen by inviting Sandy Olsen to the T-Birds unofficial bonfire party, reuniting Sandy and Danny Zuko, causing him to switch from the guy Sandy loved to a Tough, uncaring jerkass façade in front of his T-Bird friends, who saw his happiness at seeing her again as a sign of getting soft. She was also seen kicking Patty Simcox and Sandy In Summer Nights. Rizzo is a somewhat jealous young woman; this is evident when she dances with Leo Balmudo while Kenickie danced with Charlene Digregorio. Upon learning that she might be pregnant, she emotionally cut Kenickie ("It was someone else's mistake".) However, immediately after, her smug expression saddened, as she realized that she'd pushed away the guy who actually loved her. Later, she revealed a softer side of herself. Sandy offered to help, but initially Rizzo balked at the offer. Seeing how mean she'd been to Sandy, who was purer than she herself was, she relented and thanked Sandy, both smiling gratefully. At the end of the school year, a carnival is held; Rizzo is seen on a Ferris wheel, revealing to Kenickie that she isn't pregnant. Thrilled with the news, they make up, kissing passionately, and Kenickie proposed, "If that's a line, ain't bitin'. / That's a bona fide offer."