who played bernadette on the big bang theory
Melissa Rauch Melissa Ivy Rauch (born June 23, 1980)[3] is an American actress and comedian. She is known for playing Bernadette Rostenkowski-Wolowitz on the CBS sitcom The Big Bang Theory.
Margo Harshman Margo Cathleen Harshman (born March 4, 1986) is an American actress known for her role as Tawny Dean on the Disney Channel series Even Stevens. She is also known for her role on The Big Bang Theory as Sheldon Cooper's assistant, Alex Jensen, and as Delilah McGee, Timothy McGee's paraplegic wife on NCIS.[1]