George O'Malley

George O'Malley had a less dominant personality compared with his fellow residents. He once had an infatuation with Meredith Grey which ended when they slept together, and halfway through Meredith began to cry, humiliating George. He also had a strong friendship with Izzie Stevens and later Lexie Grey. He was once married to Callie Torres, but their relationship came to an end when he believed he had feelings for Izzie. The two tried a relationship but decided to remain as friends when they realized their relationship lacked chemistry. Tragically, George died when rescuing a girl from being hit by a bus, sacrificing himself instead.