Vin Diesel suggests he may be in Inhumans'

Vin Diesel alluded to Marvel's "Inhumans" in a Facebook photo, suggesting that he wants a role in the film. Or maybe he's already been cast. He's not the only one making superhero casting news.

Yes, it's a TV series, but we'll make an exception for this one: Mike Colter has been cast as superhero Luke Cage/Power Man in the upcoming Netflix series "Marvel's A.K.A. Jessica Jones."

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Benedict Cumberbatch has finally been confirmed to play Marvel's Doctor Strange on the big screen, come 2016.

Ryan Reynolds was DC's Green Lantern in 2011, but his 2009 role as Marvel's motormouth assassin Deadpool in "X-Men Origins: Wolverine" has shown more staying power. "Deadpool" is set for release in 2016.

Krysten Ritter has reportedly landed the role of Marvel's "Jessica Jones" in the upcoming Netflix series.

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Chris Hemsworth played Thor in the 2011 film of the same name. There was also a sequel in 2013, and Thor, of course, is one of the Avengers.

Ron Perlman went red for Guillermo del Toro's "Hellboy" in 2004 and "Hellboy II: The Golden Army" in 2008.

"Captain America" wasn't Chris Evans' first time battling evil in a form-fitting blue suit. Evans, Ioan Gruffudd, Jessica Alba and Michael Chiklis were the "Fantastic Four" in 2005. They teamed up again in a 2007 sequel.

Mikey Kelley, James Arnold Taylor, Nolan North and Mitchell Whitfield voiced the Teenage Mutant Ninja Turtles in 2007's "TMNT." Everyone's favorite pizza-eating reptiles returned this year in a live-action reboot.

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• Vin Diesel posts a picture of himself wearing an "Inhumans" shirt


• Marvel's "Inhumans" movie is scheduled for 2018


• Diesel already voices Groot in "Guardians of the Galaxy"

(CNN) -- Vin Diesel, can you be a little more "inhumanly" obvious?

The actor may be yanking the Internet's collective chain, or perhaps he's just trying to stroke negotiations. Either way, his Facebook page features a photo post that hints about involvement in Marvel's forthcoming "Inhumans" movie -- and has the Web buzzing.

"I Think Vin Diesel May Just Be In The Inhumans Movie," read a headline on io9.com.

The Facebook picture features Diesel wearing an "Inhumans" T-shirt, standing in front of a graphic reading, "Are you Inhuman?"

It's no sure thing, of course.

He already has a part in the Marvel universe, that of Groot, the laconic tree-like entity from "Guardians of the Galaxy," and Marvel doesn't like actors to play more than one role.

But Groot is computer-generated, and Black Bolt, the "Inhumans" part Diesel is rumored to play, barely speaks. (With good reason: His voice can demolish whole cities.)

Diesel as Black Bolt, the leader of the Inhumans, would please a chunk of fanboys. There's already a YouTube-posted trailer with Diesel in the role.

Either way, there's plenty of time for Diesel to play and fans to chew on his post. The "Inhumans" movie isn't due out until November 2018, according to the Marvel calendar.