Tonight is the infamous episode in which the gorgeous Battlestar Galactica alum Katee Sackhoff guest stars on The Big Bang Theory.  Unfortunately for Wolowitz, Sackhoff will only appear to him in a dream.

Television's least successful womanizer will actually have some real life women problems as well when he desperately tries to keep Bernadette (Melissa Rauch) as his girlfriend.  Bernadette was the waitress Penny introduced him to in "The Creepy Candy Coating Corollary."

Meanwhile, the main plotline of "The Vengeance Formulation," will also see the return of Kripke when he embarasses Sheldon on NPR.  Sheldon will then seek to destroy his nemesis.

We have a collection of episode stills from the episode.  Click to enlarge of any of the following thumbnails.

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