Izzie Stevens is a fictional character from the television series Grey's Anatomy, portrayed by actress Katherine Heigl. She is introduced as a surgical intern at Seattle Grace Hospital and is known for her compassionate nature and strong determination. Izzie has a background in modeling, which adds depth to her character as she navigates the challenges of the medical field. Throughout the series, Izzie develops significant relationships with other characters, including Alex Karev and George O'Malley. Her storylines often explore themes of love, loss, and personal growth, making her a memorable part of the show's ensemble cast.