Casey Wilson is an American actress, comedian, and screenwriter. She is best known for her role of Penny Hartz in the ABC comedy series Happy Endings. Wilson was also a cast member of Saturday Night Live and played the lead role in The Hotwives. Her notable films include Gone Girl (2014), The Breakup Girl (2015), Bride Wars (2009), Julie & Julia (2008) and Why Him? (2017). Her 2019 release includes Always Be My Maybe.