Kat Dennings (born Katherine Litwack; June 13, 1986) is an American actress. She began her career with a role in an episode of the HBO dramedy series "Sex and the City". Dennings has since appeared in the movies "The 40-Year-Old Virgin", "Big Momma's House 2", "Charlie Bartlett", "Raise Your Voice", "The House Bunny", "Defendor", "Nick and Norah's Infinite Playlist", and "Thor". She also co-stars in the CBS television series "2 Broke Girls". She has also guest starred in "The Newsroom".