Season 8 Episode 16 If Only You Were Lonely

Grey's Anatomy Season 8 Episode 16: Summer Glau to Guest-Star!

Grey's Anatomy Season 8 Episode 16: Summer Glau to Guest-Star!

Summer Glau (Firefly, Terminator) will guest-star in an upcoming episode of Grey's Anatomy, executive producer Shonda Rhimes announced on Twitter this week:

Details on her role have not yet been released, but Glau is slated to appear in Episode 16 of Season 8.

Grey's Anatomy airs next Thursdays at 9/8c on ABC.