Cast of grey's anatomy: Learn more about the full cast of

Learn more about the full cast of Grey 's Anatomy with news, photos, videos and more at TV Guide Your one-stop-shop for a refresher on all the major players you can expect to see in Grey's Anatomy Season 21. From old faces to new ones, here's next season's cast ! Main cast members on Grey's Anatomy .Justin Chambers, a former male fashion model who was discovered by a modeling scout in a Paris Metro station and went on a campaign to represent Calvin Klein 's fragrance, starred as "Dr. Alex Karev" on ABC's Grey's Anatomy (2005). Justin Willman Chambers was born on July 11, 1970 in Springfield, Ohio, His is one of five children of Pamela Sue (Willman) and John William Eugene Chambers II, and has English, Irish, and German ancestry. He has a twin brother ...