MEREDITH IS ATTACKED BY SOMEONE SHE LEAST EXPECTS, ON ABC'S "GREY'S ANATOMY"

"The Sound of Silence" - Meredith is brutally attacked by a patient, and Penny is the one who discovers her. The doctors of Grey Sloan Memorial rush to stabilize Meredith and remain by her side in the harrowing aftermath, on the midseason return of "Grey's Anatomy," THURSDAY, FEBRUARY 11 (8:00--9:00 p.m. EST) on the ABC Television Network.

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

Guest starring is Samantha Sloyan as Penny Blake and Joe Adler as Isaac Cross.

"Grey's Anatomy" was created and is executive-produced by Shonda Rhimes ("Scandal," "How to Get Away with Murder"). Betsy Beers ("Scandal," "How to Get Away with Murder"), Mark Gordon ("Saving Private Ryan"), Rob Corn ("Chicago Hope"), William Harper, Stacy McKee, Zoanne Clack and Debbie Allen are executive producers. "Grey's Anatomy" is produced by ABC Studios.

"The Sound of Silence" was written by Stacy McKee and directed by Denzel Washington.

"Grey's Anatomy" is broadcasted in 720 Progressive (720P), ABC's selected HTV format, with 5.1-channel surround sound. This program carries a TV-14, L, V parental guideline.