Vin Diesel's Valiant superhero movie "Bloodshot" has some serious star power behind it.

According to Variety, Michael Sheen, Eiza Gonzalez ("Baby Driver'), and Sam Heughan ("Outlander") have joined the cast.

TheWrap reports that Heughan will play Corporal Harlan "So Long" Shifflet.

"Bloodshot" is said to start filming in July, with Dave Wilson as director. (He's "Deadpool" director Tim Miller's partner at Blur Studios.) The script is being written by Eric Heisserer, who has an Oscar nomination for writing ""Arrival."

"Bloodshot" follows a mortally wounded soldier who is resurrected with cutting-edge nanotechnology, then tasked with rounding up superpowered outcasts called "harbingers."

And so it begins...

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Back in January, TheWrap reported on Sony's five-film shared universe plans for joint franchises based on the Valiant Comics books "Harbinger" and "Bloodshot."

Sources said the plan was to follow the successes of "Deadpool" and "Logan" with an R-rated take on "Bloodshot" that "will be tonally and aesthetically influenced by high-concept, sci-fi blockbusters of the late '80s including 'Robocop,' 'Terminator,' and 'Total Recall.'"

Sam Heughan's casting further illustrates how the "Outlander" stars are branching ... out! Caitriona Balfe was just announced for the Christian Bale/Matt Damon Ford vs. Ferrari movie. They will both be back for "Outlander" Season 4 this November.

No word yet on when "Bloodshot" is coming to theaters, but if it does well, it'll be the start of a new shared universe franchise.

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