Born in San Diego, to a Jewish family, Margo is related to Jack Harshman and Marv Harshman; both athletics.
Harshman attended Hewes Middle School and later joined Foot Hill High School in Orange. She started playing piano and is an avid dancer and gymnast from her early age. She first starred in The Elf Who Didn't Believe. She then was seen in her breakthrough performance as Tawny Dean in Even Stevens. Then she appeared in 2003 drama Run of The House and Center of Universe. She made a few guest roles on Everwood, Gray's Wood, 90120, Bones, etc. She was also seen on the film Keith and College Road Trip. Currently, she is doing a recurring role in The Big Bang Theory and NCIS.
Harshman is said to be in relationship with Josh Keaton currently, though her boyfriend was Chris Marquette during 2003.
Known for her gracious smile and beautiful feet, Harshman has no tattoos till date and is an owner of stunning body of measurements 34-28-33 with average height and weight.
Nominated for two Young Artist Awards, she is the winner of 2009, ShoWest Award ''Female Stars of Tomorrow''.
Enriched with hot and bold bikini line and exotic skin , Harshman is abundantly found in wiki and other sites.