For the first 3 seasons of Grey's Anatomy, George O'Malley is an intern at Seattle Grace Hospital played by T.R. Knight.

Dr. George O'Malley was one of Meredith Grey's roommates. He had an infatuation with Meredith from his first meeting with her, and ended up having a one-night stand with her after he told her that he loved her. She cried during their encounter.

During the beginning of his internship, he was picked by Dr. Preston Burke to perform the first surgery of all the interns. During the surgery, he choked and earned the nickname "007" (license to kill). In the next season , George and Alex Karev get stuck in an elevator with a patient who has been shot. The patient begins to bleed out and when Alex freezes up, Burke has to talk George through surgery and George "flies solo" for the first time.

After plenty of relationship turbulance with the Meredith situation and with a nurse he dated, Olivia, in Season 3 when his dad passed away, he takes off to Vegas with current girlfriend, Callie Torres-O'Malley and comes back married.

His friends don't agree with his quick decision, but mostly learn to go along with it except for his best friend, Izzie Stevens. Later on after a fight with Callie, George comes over to the house where Meredith and Izzie are living and drinks far too much with Izzie which results in them sleeping together.

At the end of season 3, George was planning to leave for another hospital to get away from his problems with Izzie, but he doesn't pass his intern exam. He is faced with huge relationship issues and a huge career decision as well. Will he come back for another year of being an intern or give up being a doctor?

• Official ABC Site: Grey's Anatomy
• Grey's Anatomy Insider: George O'Malley
• Greys-Anatomy.com: George O'Malley Quotes
• Heartfelt: The George O'Malley Fanlisting

• Wikipedia: George O'Malley