Ewan McGregor is taking on a challenge for his next role.

Fargo season 3 sees the actor play the dual roles of brothers Ray and Emmit Stussy; the former, the podgy long-haired parole officer who peaked in high school, and the latter, a man who's become the self-made Parking Lot King of Minnesota.

Showrunner Noah Hawley revealed the brothers' rivalry would prove the catalyst to the show's events; stating, "There is an old wound between them that sort of gets reopened and re-litigated, and that rivalry becomes contentious and that sort of puts all the events in motion."

"The fun soup of it is you have to have enough moving parts that everything is on a collision course, but which parts are going to collide? There’s this element of randomness to it, which I think adds to the truthiness of our fake true story. So, it starts with Ewan and Ewan as brothers. It’s not as big character-wise a story as the second year, but I’m really excited about it."

An extended trailer for the season now unveils the rest of its cast of kooky characters, with Carrie Coon as the "steady" police chief, Mary Elizabeth Winstead as Ray's girlfriend, David Thewlis as a "mysterious loner and true capitalist"; as well as Michael Stuhlbarg, Jim Gaffigan, Fred Melamed, Scoot McNairy, Karan Soni, and Thomas Mann.

Fargo Season 3 Promo