'The Big Bang Theory': Sneak a peek at Eliza Dushku

"The Big Bang Theory's" deft touch with stunt casting continues next week with a guest turn by former "Dollhouse" and "Buffy the Vampire Slayer" star Eliza Dushku.

Dushku plays an FBI agent who is checking into whether Wolowitz (Simon Helberg) deserves a security clearance, and that includes interviewing Wolowitz's friends and colleagues. That also includes some unfortunate remarks from Sheldon (Jim Parsons) that put Wolowitz's clearance in jeopardy, and an attempt by Sheldon to clarify. We're assuming that doesn't help a ton either.

Judging by the photos below, things go a little more smoothly with Leonard (Johnny Galecki), while whatever Raj (Kunal Nayyar) is saying appears to puzzle Dushku's character, Angela. Sheldon's second conversation with her is also below.

Dushku's "Big Bang Theory" appearance is scheduled for Thursday, Nov. 4.

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Photo credits: CBS