By Lynette Rice
Updated May 12, 2011 at 01:57 PM EDT
Charley Gallay/Getty Images

Hip hop star-turned-actor Mos (formerly Mos Def) will join season six of Dexter this fall. He’ll appear in a multi-episode arc as Brother Sam, an ex-con who claims to have found religion but is still surrounded by violence.

Production on Dexter begins in June in Los Angeles.

Mos earned an Emmy nomination in 2004 for his work in HBO’s Something the Lord Made. His film credits include 16 Blocks, The Italian Job and The Woodsman.