"Creatively, I really feel like I gave it my all, and I feel ready to let her go," Oh, 42, tells THR
of her decision to end her run as doctor Cristina Yang. "It's such an interesting thing to play a character for so long and to actually get the sense that she wants to be let go as well. [Cristina] wants to be let go, and I am ready to let her go. We have to start the process, story-wise, for the Grey's writers to think of why she's going to go."