Rodolfo Maximiliano Sarzo Lavieille Grande Ruiz Payret y Chaumont (born November 18, 1950) is a Cuban American hard rock/heavy metal bassist. He remains best known for his work with Quiet Riot, Ozzy Osbourne, and Whitesnake, and has also played with several well known heavy metal and hard rock acts including Manic Eden, Dio, Blue Öyster Cult, Geoff Tate's Queensrÿche, Devil City Angels, and the Guess Who. He re-joined Quiet Riot in 2021.