AIRDATE: Thursday 11 February 2016 at 8.00pm on ABC
Season 12 Episode 9
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.
Regular Cast: 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 Cast: Samantha Sloyan as Penny Blake and Joe Adler as Isaac Cross.