Lake Siegel Bell (born March 24, 1979)[2] is an American actress, writer, and director.

She has starred in the television series Boston Legal (2004–06), Surface (2005–06), How to Make It in America (2010–11) and Childrens Hospital (2008–present) and in the films Over Her Dead Body (2008), What Happens in Vegas (2008), It’s Complicated (2009), No Strings Attached (2011) and Million Dollar Arm (2014), Man Up (2015).

She wrote and directed the short film Worst Enemy, which debuted at the Sundance Film Festival in 2012, followed by her 2013 feature film directing debut In a World…, in which she also starred.