Chandra Wilson (Miranda Bailey), Justin Chambers (Alex Karev), James Pickens Jr. (Dr. Richard Webber) and Sara Ramirez (Callie Torres) are coming back to the Grey Sloan Memorial!

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The four Grey's Anatomy actors signed a two-year extension, according to TVGuide.com on Friday. They will once again join Ellen Pompeo, who plays Meredith Grey, and Patrick Dempsey, aka Derek Shepherd, both of whom renewed their season 11 and 12 contracts back in January.

This news comes as series regular Sandra Oh will end her run on the hit show after season 10. Many fans were shocked when Oh announced in August that she'd be leaving the ABC show. The 42-year-old actress, who appeared as Cristina Yang since season 1 premiered in 2005, said she wants to start a new chapter in her life.

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"Creatively, I really feel like I gave it my all, and I feel ready to let her go," Oh told The Hollywood Reporter. "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."

Tessa Ferrer and Gaius Charles will also not come back next season. Ferrer, who plays Dr. Leah Murphy, and Charles, aka Dr. Shane Ross, joined the ABC show last season as interns.

-- The Grey's Anatomy season 10 finale will air on Thursday, May 15.