Discovery Channel

New Orleans native Mark Duplass, left, plays David Kaczynski, opposite Paul Bettany as Ted Kaczynski in 'Manhunt: Unabomber' Tuesday night on Discovery.

CONTRIBUTED PHOTO FROM DISCOVERY/TINA ROWDEN

New Orleans native and actor Mark Duplass can add "played the Unabomber's brother" to his filmography.

Duplass, one half of an independent film and television production company founded by he and his brother Jay, will portray David Kaczynski on Tuesday night's episode of "Manhunt: Unabomber" on Discovery.

The episode synopsis says, "After reading the Unabomber’s Manifesto, David Kaczynski sends a sample of his brother Ted’s writing to the FBI for a comparative analysis. Fitz (FBI agent and criminal profiler Jim Fitzgerald) believes that Ted is the Unabomber and takes extreme steps to gather the proof he needs to convince his bosses at the UTF that he has their man."

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In addition to acting, the Duplass brothers are also directors, producers and writers. Their projects include films "The Puffy Chair" (2005), "Safety Not Guaranteed" (2012) and "The Skeleton Twins" (2014), and the HBO comedy-drama television series "Togetherness" and "Room 104," an anthology series which premiered July 28, also on HBO.

"Manhunt: Unabomber" airs at 9 p.m. on Discovery (cable Channel 46 in Baton Rouge and Lafayette, and cable Channel 32).  

Follow Judy Bergeron on Twitter, @judybergeronbr.