EXCLUSIVE: Jason Mantzoukas has been set to join Paul Rudd and Amy Poehler in They Came Together, the David Wain-directed comedy at Lionsgate. Mantzoukas will play Rudd’s character’s best friend. Wain wrote the comedy with Michael Showalter, about a small business owner about to lose her shop to a big corporate development.

Mantzoukas, who stars in The League, was most recently seen opposite Sacha Baron Cohen and Anna Faris in The Dictator. He’s separately developing a feature at Imagine. He’s represented at UTA, Mosaic and Morris Yorn.