In this scene from "The Becoming," Erica Hahn reacts to having lost out on an award to Preston Burke. That guy continues to get the best of her even though he's not even on the show anymore!

Drs. Callie Torres and Erica Hahn kiss passionately on the fourth season finale of Grey's Anatomy, entitled "Freedom." What a scene!

Check out this classic photo of Erica Hahn.

Dr. Erica Hahn (Brooke Smith) is all business, as is her custom, in this photo from "Crash Into Me, Part I." This episode will test the surgeons we love like never before.

Sorry. That was lame. Erica Hahn arrives to survey the crash site as the doctors of Seattle Grace work to save lives... such as some of the paramedics involved in the ambulance wreck.

Erica Hahn puts Mark Sloan in his place awfully quickly at Joe's when he tries to act upon his "thing" for her.

Dr. Erica Hahn (Brooke Smith) sizes up her sexy surgeon counterparts Derek Shepherd (Patrick Dempsey) and Mark Sloan (Eric Dane). Gotta love these three together!