|Born||March 4, 1986|
|Birthplace||San Diego, California, USA|
|Years Active||1997 - present|
Margo Cathleen Harshman is an American actress, best known for playing Tawny Dean on the Disney Channel series Even Stevens. She is also known for her a role on The Big Bang Theory as Sheldon Cooper's assistant, Alex Jensen, and on NCIS as Agent Timothy McGee's wife, Delilah Fielding.