Alison Brie works as an actress.
Alison Brie . 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 ) . BoJack Horseman . The supporting cast includes Amy Sedaris , Alison Brie , Paul F. Tompkins , and Aaron Paul . Mad Men . Mad Men is set primarily in the 1960s , initially at the fictional Sterling Cooper advertising agency on Madison Avenue in New York City , and later at the newly created firm , Sterling Cooper Draper Pryce ( later Sterling Cooper & Partners ) , located nearby in the Time-Life Building , at 1271 Sixth Avenue .