Grey's Anatomy/In the Midnight Hour
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In the Midnight Hour is the ninth episode of the fifth season of Grey's Anatomy, and the eighty-seventh episode overall.
Starring: Ellen Pompeo (Meredith), Sandra Oh (Cristina), Katherine Heigl (Izzie), Justin Chambers (Alex), T.R. Knight (George), Chandra Wilson (Miranda), James Pickens, Jr. (Richard), Sara Ramirez (Callie), Eric Dane (Mark), Chyler Leigh (Lexie), Patrick Dempsey (Derek)
Guest Starring: (in credits order) Jeffrey Dean Morgan (Denny), Kevin McKidd (Owen), Melissa George (Sadie), Joshua Malina (Seth Hammer), Leslie Grossman (Lauren Hammer), John Allen Nelson (Arthur), Madeline Carroll (Dominique), Brandon Scott (Intern Spalding)