American actress Margo Harshman started her acting career at a very young age! When she was just two years old, her grandmother would enter her into a beauty pageant and by the time she was eight she had her very own manager!

Before appearing on hit television series The Big Bang Theory, Margo was busy building her resume with roles on other popular shows including a main role as "Tawny Dean" on Disney's Even Stevens, and smaller roles on Grey's AnatomyEverwood, 90210House, and Modern Family

Margo Harshman attending the 2009 premiere of Sorority Row

Margo Harshman as "Alex Jensen"

After making a positive impression on directors all over Hollywood, in 2012, Margo Harshman was cast as "Sheldon Cooper's" research assistant "Alex Jenson" on hit series The Big Bang Theory. While a small role, Margo brought lots of energy to the part and made a lasting impression on fans of the show! 

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Between 2012 and 2013, Margo would appear on just five episodes of the show. Despite a small number of appearances, "Alex" would become very much intertwined with the rest of the cast, keeping "Sheldon" in line, and developing a romantic interest in "Leonard", much to "Penny's" dismay.

Margo Harshman attends The Hungover Games Cast & Crew Screening 2014

Margo Harshman Today

Since The Big Bang Theory Margo Harshman has continued to make waves in Hollywood and added even more popular shows to her resume with guest roles on series including BonesCSI, and most recently a reoccurring role on hit series NCIS.

While the now 34-year-old has been in many high profile relationships in the past including with actor Chris Marquette and Josh Keaton, the actress appears to be enjoying the single life recently and lives a very low-profile private life.