In this photo from the Season 5 premiere of Grey's Anatomy, "Dream a Little Dream of Me," Callie tends to a patient who appears to be making a phone call. We're not experts but that's gotta be against some kind of policy. No?

In a photo from "Brave New World," from Season 5, Meredith and Cristina look on. They are each other's person, which is always really sweet.

For the surgeons of Seattle Grace, everybody must chip in to make this patient keep on living. That's just how they like it - against the odds.

Callie, Cristina and other doctors are up to their arms in blood and organs, which is just the way these surgical junkies like it.

Joey Lauren Adams is guest starring and doing battle against Bailey for the Chief of Surgery position! Do we think she'll win in her quest?

Similarly to previously mentioned characters, Callie also comes from a strictly Catholic Latina background. She has a more difficult coming out process as her father first disowns her after hearing the news, but eventually he learns that no amount of praying will pray the gay away. With the help of her girlfriend Arizona, she's able to truly embrace her sexuality and show us that being gay is not simply a choice.

Callie has seen better days. Her marriage is under a microscope on the Grey's Anatomy episode "Bend & Break."

Callie and Arizona in "These Arms of Mine." Will their relationship problems come to a head this week?

Callie and Arizona on Grey's Anatomy. They're so cute together.

Mark, Callie and Bailey in a photo from the November 18, 2010 episode of Grey's Anatomy. Wonder what they're talking about.

The gang analyzes some info before making a decision. We're guessing it's Derek who's going to be front and center this week.

Addison and Callie were good friends at one point, and are now reunited, however briefly, on Grey's Anatomy in this photo from "Before and After."