Alex Karev

Alexander Michael Karev, (né Evans), M.D., F.A.C.S. is a fictional character on the ABC television series Grey's Anatomy, portrayed by actor Justin Chambers. Introduced as a surgical intern at the fictional Seattle Grace Hospital, Karev eventually obtained the position of resident, later becoming a pediatric surgeon. He then becomes Interim Chief of surgery for a six-month period while Bailey is on a "stress sabbatical". The relationships among colleagues Meredith Grey (Ellen Pompeo), Cristina Yang (Sandra Oh), Izzie Stevens (Katherine Heigl) and George O'Malley (T. R. Knight) formed a focal point of the series.

The character is initially disliked by his fellow interns, and is often accused of being brusque and dismissive with his patients and co-workers. As a resident, Karev's negative attitude, temper and rudeness occasionally earned the ire of the attendings. Former neonatal surgeon Addison Montgomery requested him on her service as punishment for his rudeness to her and neurosurgeon Derek Shepherd, amongst others, throwing him out of their service for his inappropriate comments about patients. He then demonstrates profound skill for the pediatric surgery for the rest of the series. As the character developed, he displayed more empathy for patients and was shown to have a gift for connecting with young children, despite his repeated claims to dislike them. In the fifteenth-season premiere, Alex becomes interim Chief of Surgery after Miranda Bailey takes a sabbatical. In the sixteenth season, Alex leaves the hospital to be with Izzie Stevens and their children making his final appearance in the season 16 episode "Leave a Light On."