Former “Dollhouse” and “Buffy the Vampire Slayer” actress Eliza Dushku is expected to guest star in the seventh episode of the “Big Bang Theory” this season.

She will play an FBI agent who questions Wolowitz’s friends so he can get top-secret security clearance.

Dushku is just one of many guest cameos from other geeky sci-fi shows to guest start on the show. She will now follow the footsteps of Katee Sackhoff and Michael Trucco (Battle Star Galactica), Summer Glau (Terminator: The Sarah Connor Chronicels) and Will Wheaton (Star Trek).

The new season of “The Big Bang Theory” opened last night on its new night and dominated its time slot with nearly 14 million viewers. It’s success carried over to CBS’ new show “$#*! My Dad Says” which was seen by nearly 12.5 million viewers.

Source: TV Shark