US television network Fox on Tuesday gave the first official story details for its "X-Men" spin-off -- confirming there will be no X-Men in the show.

"The Gifted" -- Fox's first collaboration with Marvel -- stars Stephen Moyer and Amy Acker as the fugitive parents of mutant children on the run from shady government agents.

Speculation had swirled on social media that Professor X and company would play no part as "The Gifted" joined up with another underground network of mutants.

"That's not a dodge. That's not like 'The X-Men are gone and we're never going to deal with it,'" showrunner Matt Nix told journalists at the Television Critics Association summer press tour in Los Angeles.

"It's a thing in the show and we're going to be exploring it, and it's a huge deal to these guys, it's a huge deal in the world. It's one of the central mysteries of the show."

The 10-episode show is not based on any individual Marvel Comics storyline, but it will share some characters with the "X-Men" movie franchise.

Polaris, Blink and other favorites are expected to appear, although their powers may not be as fully developed as in the comics, Nix said.

"She's not comfortable with her powers... She struggles with it," said Jamie Chung, who plays Blink.

Moyer said Marvel had made all of its comics available to the cast for research, "so we could all go down the rabbit hole or not. It's up to the individual actor."

- 'Sexy power' -

Marvel's work with Disney has since eclipsed the "X-Men" movies but the original film in 2000 is credited with sparking the re-emergence of superhero movies.

Ten "X-Men" movies have so far clocked up $5 billion in worldwide box office receipts.

The installments have ranged wildly in quality, with "Days of Future Past" receiving almost universally glowing reviews while "Origins" was hammered by the critics.

After starring in eight of the films over 17 years, Hugh Jackman returned in March for his final hurrah as Wolverine in "Logan," an edgier, darker take on the "X-Men" world.

The producers of "The Gifted" were asked if their show would reference the larger universe, in the way that "Agents of S.H.I.E.L.D." connects to the Marvel Cinematic Universe.

"If you're trying to make it a direct connection between the 'X-Men' films and the television series, the better way of looking at it is (this)," said Marvel Television head Jeph Loeb.

"If you're an 'X-Men' fan and you go to the comic book store every Wednesday, you know that there are other books that live within this world."

Fox said Tuesday "Twin Peaks" and "24: Legacy" actress Elena Satine would join the series as Dreamer, a mutant who can remove or implant people's memories.

"One of the things about her character is that's a really sexy power that isn’t a gigantic power," Nix said.

"We aren't blowing up a building with her... it doesn’t involve a six-week CG build."

"The Gifted" premieres on Fox on October 2.

Source: AFP