summer glau the cape 320 Summer Glau joins 'Grey's Anatomy' for episode 816Summer Glau has one of the coolest television resumes ever, and now she’s upping the ante yet again with a guest-starring appearance on “Grey’s Anatomy.” ABC confirms to Zap2it that Glau will make an appearance in episode 816, which began production with a table read today (Monday, Jan. 23).

While no character details have been released, we’re already in anticipation mode. “Grey’s Anatomy” is back at the top of its game this season — and yes, we’ve been crying almost every week. We’re not sure we’ll ever forgive Shonda Rhimes for the devastating death of Henry. Will Scott Foley ever get a happy ending?

In all seriousness, though, the show has us hooked now more than ever. Striking the perfect balance between joy (babies!) and tragedy (honestly, who kills off Scott Foley!?!), “Grey’s” has made it back to the top of our must-watch list, even given the packed Thursday night schedule.

We’re beyond psyched for the Feb. 2 episode, in which Meredith (Ellen Pompeo) imagines a world in which she grew up less “dark and twisty” and more “bright and shiny.” We’re expecting this fun alternate-universe episode to be much more successful than last season’s musical hour — but honestly, we’d tune in just for geeky Alex (Justin Chambers) and goth Lexie (Chyler Leigh).

greys anatomy geek alex  Summer Glau joins 'Grey's Anatomy' for episode 816

Posted by:Carina MacKenzie