George O'Malley is a fictional character from the television series Grey's Anatomy. He is portrayed by actor T.R. Knight and is known for his kind-hearted nature and dedication to medicine. George is a surgical intern who often struggles with self-confidence but shows great potential as a doctor. Throughout the series, George develops close relationships with his fellow interns, including Meredith Grey and Izzie Stevens. His character experiences significant growth, facing various personal and professional challenges, ultimately becoming a respected member of the surgical team at Seattle Grace Hospital.