This is Izzie Stevens. Maybe you remember her from Seasons 1-5 of Grey's Anatomy? She's still on the show, apparently!

Lexie Grey, or Lexipedia as she is sometimes known, has really come into her own as a valuable member of TV's best cast. In our opinion, anyway!

Sara Ramirez has been awesome as Dr. Callie Torres since she first appeared on Grey's Anatomy in Season Two. Now a lesbian, she is dating Arizona (Jessica Capshaw).

That's what Dr. Arizona Robbins was named for. The Pearl Harbor vessel famous from World War II. Her father was a military man who believed in honor. She believes in the same!

Owen Hunt in a promotional photo from Season Six of Grey's Anatomy. Kevin McKidd is so bad ass.

Cristina Yang is one of our favorite characters, year after year. She's the best!

Derek Shepherd, a.k.a. McDreamy, has been one of the core characters from the beginning. Grey's Anatomy isn't Grey's Anatomy without Derek Shepherd (Patrick Dempsey).

Okay, no one calls Richard Webber (The Chief) Rich. But we thought we'd give it a try. We likely won't do so again.

This is Dr. Miranda Bailey. From the moment we got to know her as the Nazi, she's been a Grey's Anatomy character we've loved. Hopefully for many years to come, she'll remain that way!

Alex Karev in a promotional photo from Season Six of Grey's Anatomy. No idea what's going on with that background!

Mark Sloan is the father of Sloane. That's right, his daughter has just been introduced to us in Season Six. Will that mean more Mark screen time than in years past?

That's what Meredith brings to the table. The title character has been a fan favorite since the pilot episode and that's never gonna chance!