Mark Duplass and More Join Discovery Channel's Unabomber Scripted Series

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Mark Duplass, one-half of Hollywood’s prolific brother acting and producing team responsible for Togetherness and the upcoming HBO series Room 104, will step back in front of the camera to play David Kaczynski on Discovery Channel’s upcoming scripted drama, Manifesto. The actor will portray the younger brother of Ted Kaczynski (Paul Bettany), the infamous anarchist and domestic terrorist also known as the Unabomber. Duplass joins a growing ensemble cast, which includes Bettany, Sam Worthington as FBI agent Jim “Fitz” Fitzgerald, Jane Lynch as former U.S. Attorney General Janet Reno, Chris Noth as Unabomber Task Force supervisor Don Ackerman and Keisha Castle-Hughes as Tabby. ET has also learned that Jeremy Bobb (The Knick), Lynn Collins (X-Men Origins: Wolverine), Katja Herbers (The Leftovers) and Brían F. O’Byrne (PBS’ Mercy Street) will round out the cast. Herbers will play David Kaczynski’s wife, Linda, while the others will play various FBI agents. MORE: Inside the Mind of Mark Duplass and How He Plays Hollywood by His Own RulesManifesto, which follows the scripted miniseries Harley and the Davidsons, quickly has become a highly anticipated project thanks to its A-list cast and producing team, which includes Kevin Spacey and Dana Brunetti as executive producers and Lionsgate. The show, which was first announced in March of last year, will start production in Atlanta on Jan. 30. Meanwhile, Duplass and his brother Jay are busy with several HBO projects, including Room 104, an anthology comedy series that is slated to debut later this year, and Animals, the animated comedy, on which they serve as executive producers. Duplass recently promised to ET that Room 104 “is a lot more fun and off the rails than maybe Togetherness was. This thing is more bananas."