"Game of Thrones" star Alfie Allen is leaving Theon behind and becoming ... a Nazi. It's not quite an upgrade, personality-wise, but it's exciting news for the actor's career to be joining the "Jojo Rabbit" ensemble.

"Thor: Ragnarok" director Taika Waititi wrote and is directing "Jojo Rabbit," a World War II satire in which he also costars as a version of Adolf Hitler.

The story follows an awkward young German boy (Roman Griffin Davis) raised by a single mother (Scarlett Johansson) whose only ally is his imaginary friend Hitler (Waititi). The boy is raised in a Hitler Youth camp and is confronted with a decision when he learns his mother is hiding a young Jewish girl (Thomasin McKenzie) in the house.

Newly minter Oscar winner Sam Rockwell plays Captain Klenzendorf, Nazi leader of the boy's Hitler Youth Camp. Rebel Wilson will play Fraulein Rahm, described as a brutish instructor in the camp.

According to Deadline, Allen will play Finkel, second in command to Rockwell's Captain Klenzendorf.

"I'm stoked to begin shooting my anti-war satire," Taika Waititi recently said at the start of production. "We've assembled an incredible cast and I couldn't be more excited to finally ridicule Nazis and their beliefs. This film is going to piss off a lot of racists and that makes me very happy."

The first photo from the movie is shown at top, with Jojo (Roman Griffin Davis) having dinner with his imaginary friend Adolf and his mother, Rosie.

Deadline reports that Alfie Allen will follow "Jojo Rabbit" with "How To Build A Girl." That film stars Beanie Feldstein as Johanna Morrigan, "an opinionated and overweight girl desperate to leave her hometown, who remakes herself as the badass music critic Dolly Wilde. She quickly gains notoriety as an enfant terrible, but is this girl she built really who she wants to be?"

And of course we're waiting to see what happens with Theon and company in "Game of Thrones" Season 8, the final season coming to HBO in 2019.

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