The Tech Wiz: Penelope Garcia (Criminal Minds)
Don't be deceived by her bubbly personality and optimistic outlook. Penelope is no stranger to hardship. After her parents were killed by a drunk driver, she dedicated her life to helping victims get the justice they deserve. While she doesn't carry a gun, Penelope is just as intimidating in the field as in the office. The Behavioral Analysis Unit wouldn't be nearly as successful in solving crimes without her.
Watch Criminal Minds on CBS.