Karev does a patient work up in this photo from the Grey's Anatomy winter premiere. It is titled "Where Do We Go From Here."

Levi has to review the errors he made when he accidentally killed his patient, but he doesn't make it through it.

It's nice to see Callie smiling, isn't it? This Grey's Anatomy doctor has been through a lot on Season 11.

Elisabeth Finch stars in this episode she wrote of Grey's Anatomy.

Maggie is eager to please in her new role but she'll face several challenges this season.

Nick is back in town for another visit as Mer deals with the fallout from her decision to move to Minnesota.

The former heroin addict and alcoholic abused his wife and kids before abandoning them. We know Alex forgave Jimmy before he died but we can't say he's not better off without dear old dad.

This is actress Jennifer Bassey. She guest stars on Grey's Anatomy.

Georgie has more experience than maybe anyone else with the Visitors. They killed his whole family.

The 400th episode of Grey's Anatomy sees some shocking departures and Meredith staying behind.

Mer is looking to the future after Nick's offer. What will she choose?

George O'Malley has been largely absent from Grey's Anatomy this season. What gives?