ITV's new Jekyll & Hyde series has been billed as a "superhero story" - with a "sexy" Mr Hyde.
Cast and crew from the new paranormal drama attended a panel at MCM London Comic Con on Saturday (May 23).
Lead writer Charlie Higson said: "It's a superhero Jekyll & Hyde - about Dr Jekyll's grandson, who doesn't know anything about who he is or why he's like he is.
"[The book is] the prototype superhero story - it's a guy with an alter ego. He can turn into someone else, nobody knows it's him and he can do all the things he dreams about, so I thought there was a lot you could do with it that was new and exciting."
Higson described the show's Hyde as "sexy", "good-looking" and "dangerous" - with Da Vinci's Demons actor Tom Bateman playing the dual-role of Hyde and his mild-mannered alter ego Jekyll.
"We didn't want Hyde to be a horrible monster with fangs and wild hair," Higson explained. "He's a really good fighter, he's invulnerable, he's really fast and he can regenerate quickly."
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Higson cited classic '60s series - including The Prisoner, The Avengers and The Champions - as his inspiration for Jekyll & Hyde, along with the Indiana Jones movies.
"One of our models for making it was Indiana Jones," he revealed. "You've got action, you've got adventure, you've got humour...
"But there's also quite a lot of horror in those films, and you can use the humour to stop the horror from getting too heavy - particularly bearing in mind the sort of audience we're looking for with the show."
ITV's Jekyll & Hyde will follow Bateman's lead as two secret organisations fight "for his soul" - and Higson has revealed that ITV is hoping the show will run and run.
"ITV want this to be a big international show that they can sell around the world," he said. "So I had to write a document loosely mapping out what might happen in the first three series."
Jekyll & Hyde - also starring Richard E Grant and Coronation Street's Natalie Gumede - will launch on ITV in autumn 2015.
ITV orders new Jekyll & Hyde series from writer Charlie Higson
Tom Bateman, Richard E Grant and Natalie Gumede for ITV's Jekyll & Hyde
