The Season Four cast of Grey's Anatomy: Starring the lovely Ellen Pompeo (Meredith Grey), Patrick Dempsey (Derek Shepherd), Sandra Oh (Cristina Yang), Katherine Heigl (Izzie Stevens), T.R. Knight (George O’Malley), Justin Chambers (Alex Karev), Chandra Wilson (Miranda Bailey), James Pickens, Jr. (Richard Webber), Sara Ramirez (Callie Torres), Eric Dane (Mark Sloan) and Chyler Leigh (Lexie Grey).

Addison calls him out on his crap!

Alex, Cristina, Izzie and George worry about Meredith.

Alex cares for Jane Doe's baby.

Alex asks Jane Doe to come clean.

Alex and Ava/Jane Doe's baby.

Alex talks to Jane Doe / Ava / Rebecca Pope.

Our favorite group of interns chats it up.

The interns prepare for their big test.

Is Alex that type of guy, or is he a player?

Karev finally gets to scrub in!

Hey, everyone's got to at some point during these long shifts!