They do their thing, as always! Mark, Izzie and Callie tend to a patient played by guest star Ben Vereen in an early Season Four episode of "Grey's Anatomy."

George and Callie kiss. Are these two going to be back on a normal playing field with Izzie out of the romantic picture?

Alex and Callie talk to their patient, unaware that he is about to eat everything in sight. But what are you gonna do.

Unfortunately, for him, Alex Karev that is, Callie Torres is calling the shots. You would never have guessed it but he finds himself missing Dr. Bailey.

Callie, Meredith, Cristina, Izzie and Miranda prepare for action as an ambulance crash threatens the lives of many right on the premises of Seattle Grace.

Meredith, Callie and Izzie try to shelter themselves from the wreckage as a bad situation soon gets a lot worse in "Crash Into Me, Part I," originally airing November 22, 2007.

He got jealous, which only made her more attracted to him in this episode.

A photo from the May 1, 2008 episode of Grey's Anatomy, entitled "Piece of My Heart." Dr. Addison Montgomery (Kate Walsh) is back at Seattle Grace and talking to her old friend, Callie Torres (Sara Ramirez)!

Will he say it back?

In this scene from "The Becoming," from Grey's Anatomy Season Four, Callie Torres (Sara Ramirez) is looking a little forlorn and unsure of what to do.

Callie Torres and Mark Sloan made some love in the on-call room. But surprisingly, Mark later gave her the cold shoulder.

Following a place crash and a shoot out, Heroes unite. Will Peter, Ando, Hiro, Mohinder and Parkman get their revenge?