In this "Grey's Anatomy" spinoff, neonatal surgeon Addison Forbes Montgomery (Kate Walsh) leaves the drama of Seattle Grace Hospital for a new life in Santa Monica, Calif., at the Oceanside Wellness Group. Though her new co-workers have no shortage of emotional baggage, they're standout physicians -- and Addison goes along for the ride. The series also stars Tim Daly, Taye Diggs, Amy Brenneman, Paul Adelstein and Audra McDonald.