Summer Glau

And the geeks shall swarm Seattle Grace...

Terminator star Summer Glau will guest-star in an upcoming episode of Grey's Anatomy, executive producer Shonda Rhimes announced on Twitter Monday.

"Love table read days! We have Summer Glau as a guest star!" Rhimes wrote.

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Details on her role are scarce, but TVGuide.com has learned that she'll play a nurse. Glau is slated to appear in Episode 16 of Season 8.

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