Dr. Erica Hahn (Brooke Smith) is a long-time rival of Dr. Preston Burke in the field of cardiothoracic surgery, dating back to their days at Johns Hopkins Medical School, where she graduated second in her class - after Burke.

Erica was a cardiothoracic attending surgeon at Mercy West Hospital in Seattle. Back in Season 2, she and her old adversary Dr. Burke fought over a donor's heart.

Because of faulty information from Izzie pertaining to Denny Duquette's condition, he was given the donor heart, much to her dismay. But in an ironic twist, Dr. Hahn was asked to perform the surgery on Denny after Burke was shot outside the hospital.

In Season 3, Erica Hahn was contacted for a consult on Harold O'Malley's valve replacement after George lost confidence in Burke's condition.

She and Burke have a love-hate relationship, and while she would die before saying it in front of him, Dr. Hahn respects and admires Burke tremendously.

She told Cristina Yang - at the time Burke's girlfriend / fiance, that if she became half the surgeon Burke is, that's pretty damn good. In Season Four, with Burke having left Seattle, Dr. Hahn was hired by Chief Richard Webber to head cardiothoracic surgery efforts at Seattle Grace.

Erica Hahn Quotes

Erica: Is it me or there are teenyboppers staring at you?
Mark: I get that a lot. It started when I was their age, never really went away.
Richard: Is that so?

This is going to be so much fun.

Dr. Hahn

Grey's Anatomy Quotes

[narrating] "At the end of the day, when it comes down to it, all we really want is to be close to somebody. So this thing where we all keep our distance and pretend not to care about each other, it's usually a load of bull. So we pick and choose who we want to remain close to, and once we've chosen those people, we tend to stick close by. No matter how much we hurt them. The people that are still with you at the end of the day, those are the ones worth keeping. And sure, sometimes close can be too close. But sometimes, that invasion of personal space, it can be exactly what you need."

MEREDITH

Did you say it? 'I love you. I don't ever want to live without you. You changed my life.' Did you say it? Make a plan. Set a goal. Work toward it, but every now and then, look around; Drink it in 'cause this is it. It might all be gone tomorrow."

Meredith (closing voiceover)