Grey's Anatomy Is Bringing Back Derek's Sister Amelia on a Recurring Basis -- But Why?

There’s something about Amelia… that will necessitate an extended Grey’s Anatomy visit from Derek Shepherd’s youngest sister. RELATED | Grey’s Anatomy Scoop: Isaiah Washington to Return to Take Cristina’s Journey ‘Full-Circle’ Caterina Scorsone, who created the role of substance-abusing neurosurgeon Amelia […]