The actress took her final bow at the end of "Grey's Anatomy" season 10, which aired in 2014. To explain Cristina's exit, the character moved to Switzerland. "It's very rare, I would say, to be able to see in such a way the impact of a character," Oh said.

What season does Christina leave?

Cristina was written out after the show's 10th season, leaving Meredith Grey (Ellen Pompeo) and more beloved characters behind for a new job in Switzerland.

What episode does Kristina leave?

In the Season 10 finale, Cristina (Sandra Oh) leaves the hospital for good to go work in Zurich.