'Grey's Anatomy' - Justin Chambers as Alex Karev

Will Alex get over losing Ava? Is he going to break Izzie's heart? Justin Chambers stars as Alex Karev in season five of ABC's hit medical drama Grey's Anatomy.

More About Grey's Anatomy

• Synopsis and Other Essential Information
• Spoilers/Episode Guide

Cast Biographies

• Ellen Pompeo
• Patrick Dempsey
• Katherine Heigl
• T.R. Knight
• Sandra Oh