Steve Zahn is in negotiations and Kim Dickens is set to co-star on Treme, David Simon's pilot for HBO, according to The Hollywood Reporter.
Treme takes its title from an area in New Orleans, and is a post-Katrina-themed drama that chronicles the rebuilding of the city through the eyes of local musicians.
Zahn would play Davis Rogan, a whip-smart street dancer, local radio DJ, band member and proud New Orleans native with anger issues. The role would showcase Zahn's musical talents as a singer-guitarist.
Dickens would play a hardworking chef who opened her own restaurant and has an on-again/off-again relationship with Rogan.
Zahn and Dickens join previously cast Clark Peters, Wendell Pierce and Khandi Alexander.
Treme marks the first major series commitment for Zahn, who has been heavily pursued by the networks for several years.