Mamie Gummer, Emily Owens M.D.

With a solid Broadway resume under her belt, Gummer (aka Meryl Streep's kid) first made the leap to television in last year's short-lived Shonda Rhimes drama Off the Map (in which she also, coincidentally, played a doctor). Gummer plays a recent med school graduate who discovers that she'll be working alongside her high school nemesis at her new job — and also finds herself involved in two distinct love triangles.