Alison Brie is an actress.
Alison Brie Franco ( née Schermerhorn born December 29 , 1982 ) , known professionally as Alison Brie , is an American actress and producer . sitcom Community ( 2009 -- 2015 ) and Trudy Campbell in the AMC drama Mad Men ( 2007 -- 2015 ) , and currently voices Diane Nguyen on the Netflix animated series BoJack Horseman ( 2014 -- present ) . She has starred in several films , such as Scream 4 ( 2011 ) , The Five-Year Engagement ( 2012 ) , The Lego Movie ( 2014 ) , Get Hard ( 2015 ) , Sleeping with Other People ( 2015 ) , and How to Be Single ( 2016 ) .