This paper toy is Penny, the main female protagonist of the American sitcom The Big Bang Theory, the papercraft was created by Bruno Vilardi. Penny lives in apartment 4B across the hall from Leonard Hofstadter and Sheldon Cooper, who live in apartment 4A. Her full first name is possibly "Penelope" as implied by "The Barbarian Sublimation", and her surname has not been given so far though for four years she was technically Penny Johnson when accidently married to Zack Johnson.
An aspiring but mostly unsuccessful actress, she was born on a farm near Omaha, Nebraska, and worked at The Cheesecake Factory as a waitress until she quit in The Occupation Recalibration (S7E13) to take up acting full time. Penny was the original female lead in the show before being joined by Bernadette Rostenkowski and Amy Farrah Fowler.
She has been Leonard's love interest for most of the show, with the two dating briefly in the first episode of the second season, for most of the third season, and they rekindled their romance in "The Recombination Hypothesis". Penny is good friends with Leonard and Sheldon, and even though she is considered part of the guys' group, she represents the "dumb blonde" for viewer context in the series. [Source: wikipedia]
You can download the papercraft toy here: The Big Bang Theory - Penny Free Paper Toy Download