With a name like McDreamy, it can be hard to see Derek Shepherd (Patrick Dempsey) as anything less than perfect. The hair, the eyes, the talent...he's the ultimate package! But on tonight's episode of Grey's Anatomy, he's going to drop the veneer of perfection, and McDreamy is going to be a real...well, McJerk.
Caterina Scorsone, who plays his sister Amelia Shepherd, revealed that when Amelia needs her brother the most, he's going to let her down in a major way. So what's going to cause Amelia to need her brother's support?