The Big Bang Theory’s newest and wildest spin-off, Stuart Fails to Save the Universe, has brought back another original character in the latest episode. Giant Bernadette may be the most perfectly ridiculous Big Bang callback yet. Melissa Rauch returned as Bernadette Rostenkowski in Stuart Fails to Save the Universe Episode 3, but with a twist. Like Nayyar and Cuoco, she plays an alternate version of her Big Bang Theory character. Melissa Rauch used an old Big Bang routine to find Bernadette’s voice againIn the same interview, Rauch disclosed that she needed some preparation to find Bernadette’s high-pitched voice seven years after The Big Bang Theory ended.