Question: are jasper and rosalie siblings?
Answer: Jasper Hale (born Jasper Whitlock) is the adopted son of Carlisle and Esme Cullen, adoptive brother of Rosalie, Edward, and Emmett, and husband of Alice Cullen. He and Rosalie are not related, but they can pass for biological siblings and share the surname "Hale." He has honey-blond hair, and he is lean.