Margo Cathleen Harshman Height, Weight, Age, Net Worth, Facts On March 4, 1986, Margo Cathleen Harshman was born. She is an American actress best known for playing Tawny Dean, a series regular on Even Stevens, Alex Jensen, Sheldon Cooper’s assistant on The Big Bang Theory, and Delilah Fielding-McGee, Timothy McGee’s wife on NCIS. Margo Cathleen … Continue reading Margo Cathleen Harshman Lifestyle, Career, Short Bio