Who Is He (And What Is He To You)?

"OPENING VOICEOVER"

- Meredith Grey

 is the NUMBER episode of the thirteenth season and the NUMBER overall episode of Grey's Anatomy.

Main Cast

 * Ellen Pompeo as Dr. Meredith Grey
 * Justin Chambers as Dr. Alex Karev
 * Chandra Wilson as Dr. Miranda Bailey
 * James Pickens, Jr. as Dr. Richard Webber
 * Kevin McKidd as Dr. Owen Hunt
 * Jessica Capshaw as Dr. Arizona Robbins
 * Sarah Drew as Dr. April Kepner
 * Jesse Williams as Dr. Jackson Avery
 * Caterina Scorsone as Dr. Amelia Shepherd
 * Camilla Luddington as Dr. Jo Wilson
 * Jerrika Hinton as Dr. Stephanie Edwards
 * Kelly McCreary as Dr. Maggie Pierce
 * Jason George as Dr. Ben Warren
 * Martin Henderson as Dr. Nathan Riggs
 * Giacomo Gianniotti as Dr. Andrew DeLuca

Patient

 * Diagnosis:


 * Doctors:


 * Treatment:

Notes and Trivia

 * This episode's title originated from the song , originally sung by BAND.
 * This episode scored million viewers.