Grey's Anatomy Season 10, Episode 17 Do You Know? Drama IMDB 8.226 Country United States Duration 43 min Air Date 2014-03-27 Actors Ellen Pompeo (Meredith Grey) James Pickens Jr. (Richard Webber) Chandra Wilson (Miranda Bailey) Kevin McKidd (Owen Hunt) Camilla Luddington (Jo Wilson) Kim Raver (Teddy Altman) Chris Carmack (Atticus Lincoln) Jake Borelli (Levi Schmitt) Anthony Hill (Winston Ndugu) Caterina Scorsone (Amelia Shepherd) Overview Cristina imagines the two routes her life can take based on one decision she makes. Meanwhile one of the hospital’s patients decides whether or not to live.