Fear (of the Unknown)

"OPENING VOICEOVER"

- Cristina Yang

 is the 24th and final episode of the tenth season and the 220th overall episode of Grey's Anatomy.

Short Summary
The doctors of Grey Sloan Memorial Hospital bid an emotional farewell to the beloved Cristina Yang. A possible act of terrorism rocks Seattle and causes chaos at the hospital. Meanwhile, Meredith makes a life-changing decision and one doctor receives shocking news.

Main Cast

 * Ellen Pompeo as Dr. Meredith Grey
 * Sandra Oh as Dr. Cristina Yang
 * Justin Chambers as Dr. Alex Karev
 * Chandra Wilson as Dr. Miranda Bailey
 * James Pickens, Jr. as Dr. Richard Webber
 * Sara Ramírez as Dr. Callie Torres
 * Kevin McKidd as Dr. Owen Hunt
 * Jessica Capshaw as Dr. Arizona Robbins
 * Sarah Drew as Dr. April Kepner
 * Jesse Williams as Dr. Jackson Avery
 * Camilla Luddington as Dr. Jo Wilson
 * Gaius Charles as Dr. Shane Ross
 * Jerrika Hinton as Dr. Stephanie Edwards
 * Tessa Ferrer as Dr. Leah Murphy
 * Patrick Dempsey as Dr. Derek Shepherd

Guest Stars

 * Caterina Scorsone as Dr. Amelia Shepherd
 * Jason George as Dr. Ben Warren
 * Debbie Allen as Dr. Catherine Avery
 * Kunal Kumar as

Patient

 * Diagnosis:
 * Doctors:
 * Treatment:

Notes and Trivia

 * This episode's title originated from the song , originally sung by Heathen.
 * This episode scored million viewers.
 * This is the last episode to be directed by Tony Phelan, as he leaves the show after this season.
 * It also marks the last episode for Sandra Oh, Gaius Charles, and Tessa Ferrer to appear as Cristina Yang, Shane Ross, and Leah Murphy respectively as main cast members.
 * Sandra Oh filmed her last scene on April 24, 2014.