Katherine Victoria Litwack (born June 13, 1986), known professionally as Kat Dennings, is an American actress. She is known for starring as Max Black in the CBS sitcom 2 Broke Girls (2011–2017) and as Darcy Lewis in the Marvel superhero films Thor (2011) and Thor: The Dark World (2013). Dennings had a recurring role on ER from 2005 to 2006 as Zoe Butler, and guest-starred in the CSI franchise twice: first on CSI itself, as Missy Wilson, in the 2004 episode "Early Rollout". Then, on CSI: NY as Sarah Endecott, in the 2005 episode "Manhattan Manhunt". From 2014 to 2016, Dennings dated singer Josh Groban. Since making her acting debut in 2000, Dennings has 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), and Suburban Gothic (2014). In September 2008, Dennings hoped to make Don DeLillo's novel End Zone into a film. Actors Sam Rockwell and Josh Hartnett were involved, but the project was not greenlit because of its controversial subject matter of nuclear war. Dennings starred in the drama film To Write Love on Her Arms (originally titled Renee) in 2012, with Chad Michael Murray and Rupert Friend. She played Renee Yohe, a Florida teenager who struggled with substance abuse and self-injury, and who inspired the founding of the nonprofit organization To Write Love on Her Arms.
