Katherine Litwack(born June 13, 1986), known professionally as Kat Dennings, is an American actress. Starting with a role in an episode of the HBO dramedy series Sex and the City, Dennings has since appeared in the films 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, Thor, and Thor: The Dark World. Since 2011, she stars alongside Beth Behrs in the CBS sitcom 2 Broke Girls.
Dennings was born and raised in Bryn Mawr, Pennsylvania. Her mother, Ellen Judith Litwack, is a poet and speech therapist, and her father, Gerald J. Litwack, is a molecular pharmacologist, and college professor and chairman. Dennings is the youngest of five children, including an older brother, Geoffrey S. Litwack. Her family is Jewish.
Dennings was homeschooled; her only enrollment at a traditional school was for a half-day at Friends' Central School. She graduated from high school early, at the age of 14. She moved with her family to Los Angeles, California, so that she could act full-time. She adopted the surname "Dennings" as her professional name when she was younger.
