Katherine Litwack (born June 13, 1986), known professionally as Kat Dennings, is an American actress. After making her acting debut in an episode of the HBO dramedy series Sex and the City, Dennings has since appeared in films including The 40-Year-Old Virgin (2005), Big Momma's House 2 (2006), Charlie Bartlett (2007), The House Bunny (2008), Nick and Norah's Infinite Playlist (2008), Defendor (2009), Thor (2011) and Thor: The Dark World (2013). From 2011 to 2017, she starred alongside Beth Behrs in the CBS sitcom 2 Broke Girls.
