Why Bernadette’s Voice Is So High In The Big Bang Theory (& Why It’s So Important)

Bernadette’s unusually high voice in The Big Bang Theory has a fascinating origins story. After several years of only running with five main characters, CBS expanded the cast of The Big Bang Theory by promoting a couple of recurring guest stars as mainstays. The first one was Mayim Bialik’s Amy Farrah Fowler, the female counterpart of Jim Parsons’ Sheldon Cooper, and Melissa Rauch’s Bernadette Rostenkowski. The latter started as Penny’s The Cheesecake Factory co-worker who eventually started a relationship with Howard. Aside from being the woman who tamed the Pasadena gang’s sleaziest member, Bernadette was also best known for her voice.