P.J. Byrne has joined the Martin Scorsese-directed The Wolf Of Wall Street. The Horrible Bosses actor will play “Wigwam” Cohen, one of the gang of brokers that hang around with the Wolf himself Jordan Belfort (Leonardo DiCaprio). The film, adapted from Belfort’s bestselling memoir by Boardwalk Empire’s Terence Winter, chronicles Belfort’s rise and harsh fall on Wall Street. Riza Aziz, Joey McFarland, DiCaprio, Scorsese, Emma Koskoff and Alexandra Milchan are producing. Irwin Winkler and Georgia Kacandes are executive producers. Red Granite Pictures owns the rights to Belfort’s memoir and is financing the film, which is scheduled to begin shooting next month in New York City. Byrne also is appearing in The Campaign with Will Ferrell and Zach Galifianakis, which is out August 10. He is repped by Greene & Associates and Peikoff Law Office.