Jason Schwartzman, Ben Whishaw Among 12 Years of "Fargo" Season 4 Cast – Variety

FX has announced that Jack Huston, Jason Schwartzman and Ben Whishaw will join the "Fargo" for their upcoming fourth season.

Earlier, Cabler announced that comedian Chris Rock would also board the limited series in a leading role. Season 4 of "Fargo" is set to air by 2020.

Schwartzman will play a character named Josto Fadda, while Whishaw will play Rabbi Milligan and Huston will portray Odis Weff. Rock is set to play the head of a family who has handed his youngest boy to the enemy, and who in turn must raise his enemy son as his own.

The other new cast members are Jessie Buckley (Oraetta Mayflower), Salvatore Esposito (Gaetano Fadda), Andrew Bird (Thurman Smutney), Jeremie Harris (Leon Bittle), Gaetano Bruon (Constant Calamita), Anji White (Dibrell Smutney), Francesco Acquaroli (Ebal Violante), Emyri Crutchfield (Ethelrida Pearl Smutney) Amber Mid-Dogs (Swanee Capps).

Described as a story of "immigration and assimilation and the things we make for money" is said season 4 by "Fargo" in 1

950 in Kansas City, Missouri, where two criminal syndicates – one Italian, one African-American – have struck an uneasy peace . To cement their peace, the heads of both families have traded with their eldest sons. Rock will play the head of a syndicate who has handed his son to the enemy, and who has to raise his son's enemy as his own. But then Kansas City Mafia leads to the hospital for routine surgery and dies – and everything changes.

Noah Hawley, who created the award-winning series, will return as a showrunner, author and director. Joel & Ethan Coen, Warren Littlefield and John Cameron have also served as executive producers. "Fargo" is produced by MGM Television and FX Productions.