Mark and Derek look on in a promotional picture from "Life During Wartime," from the fifth season of Grey's Anatomy. They don't look too sure about these developments, whatever they may be.
In this photo from the fourth season finale of Grey's Anatomy, "Freedom," Callie and Mark have a conversation outside Seattle Grace. Will they get together?
In this photo from the fourth season finale of Grey's Anatomy, "Freedom," Callie and Mark have a conversation outside Seattle Grace. What's to come of their relationship, if anything?