Discovery has found its FBI agent for Manifesto. Avatar star Sam Worthington has been tapped to play opposite Paul Bettany in Discovery's Unabomber drama, Manifesto, The Hollywood Reporter has learned.

The eight-episode series, produced by Kevin Spacey and Dana Brunetti's Trigger Street and Lionsgate Television, tells the story of how the FBI captured Ted Kaczynski (Bettany), one of the most infamous criminal masterminds in the world.

Worthington will play FBI agent Jim "Fitz" Fitzgerald, one of the most decorated profilers in the history of the bureau, whose radical approach to intelligence gathering ultimately took Kaczynski down. Manifesto will be Worthington's first major leading role on U.S. television.

Manifesto was written and exec produced by Andrew Sodroski and overseen by showrunner Greg Yaitanes (Quarry, Banshee), the latter of whom will also direct. Spacey, Brunetti and Troy Searer exec produce alongside Discovery's John Goldwyn. The real Fitzgerald will serve as consulting producer.

Worthington currently stars in Mel Gibson's Hacksaw Ridge. His credits include Avatar, Terminator Salvation, Clash of the Titans and more. He's repped by CAA, Shanahan Management, Anonymous Content and Hansen Jacobson.

A premiere date for Manifesto has not yet been determined.