Andy Serkis Reveals the Character He'll Play in 'Avengers: Age of Ultron', Julie Delpy and Linda Cardellini Also in the Cast

Andy Serkis, 50, best known for his motion capture performances in The Lord of the Rings, The Hobbit, and the Planet of the Apes film franchises, has confirmed that he he'll be playing a part in Avengers: Age of Ultron which is set for release on May 1.

Serkis told UPROXX: "Well, I think I can absolutely confirm it's Ulysses Klaw now because I think the news is out. I sort of noticed that people on the red carpets sort of knew that I was Ulysses Klaw, so I thought 'It must be out then.' It was [a really minimal role], but I just loved doing it. It's a great character." In Marvel Comics mythology, Serkis' character is physicist who has been transformed into solid sound, and who wears a sonic emitter on his right wrist as a prosthetic device which can create solid objects out of sound energy. His right hand was severed during a fight with the superhero Black Panther who also succeeds in capturing him. He was later freed by someone called Crimson Cowl who turns up to be really Ultron.

As already announced by Marvel Studios and Walt Disney Studios Motion Pictures, Avenger: Age of Ultron will be shown in both 2D and in IMAX 3D. As also previously teased by director and writer Joss Whedon, the upcoming sequel to 2012's Marvel's The Avengers will find earth's mightiest superheroes pushed to the brink of their limits. "With the first 'Avengers,' everybody pretty much had the power to punch somebody. And now [in the sequel] we have a woman who can get inside your head and move objects, and a boy who can move faster than anything, and a robot who can replicate and is out of his mind. So all of a sudden, it's a darker, weirder, tougher world that they're living in," he said in an interview with Entertainment Weekly.

In the upcoming movie, the woman who can get inside people's head and move objects with her will is the mutant known as the Scarlet Witch (played by Elizabeth Olsen) while the boy who can move faster than anything is her fraternal twin Quicksilver (played by Aaron Taylor-Johnson). The crazy robot who can replicate is the Ultron (played by James Spader) in the movie's title and who ironically was created by Tony Stark (played by Robert Downey Jr.) himself to help out in restoring peace and order following the destruction of S.H.I.E.L.D. as a result of the mayhem witnessed in Captain America: The Winter Soldier.

Still, in another talk with Empire, Whedon got to further describe his own film version of Marvel's comic book Ultron, saying: "I'm having a blast with Ultron. He's not a creature of logic -  he's a robot who's genuinely disturbed. We're finding out what makes him menacing and at the same time endearing and funny and strange and unexpected, and everything a robot never is." Whedon's Ultron, to complete his team of baddies, creates the Vision, a solar-powered synthetic humanoid who can fly, discharge energy beams and alter his body's density. Interestingly, the Vision will be played by Paul Bettany who was the voice actor behind JARVIS, Tony Starks' own AI assistant in Iron Man 3.

Aside from Downey, Spader, Bettany, Serkis Olsen and Taylor-Johnson, The Avengers: Age of Ultron returning cast will have Chris Hemsworth as Thor, Mark Ruffalo as the Hulk, Cris Evans as Captain America, Scarlett Johansson as Black Widow, Jeremy Renner as Hawkeye and Samuel L. Jackson as Col. Nick Fury. Paul Bettany who was the voice actor behind JARVIS, Tony Starks' own AI assistant in Iron Man 3, plays the Vision, a solar-powered synthetic humanoid who can fly, discharge energy beams and alter his body's density. Other members of the cast include Cobie Smulders as agent Maria Hill, Don Cheadle as Col. James Rhodes, Thomas Kretschmann as Baron Wolfgang von Strucker, Stellan Skarsgard as Erik Selvig, Claudia Kim as Dr. Cho, and of course, as is now customary in Marvel films, Stan Lee for his usual cameo appearance. Julie Delpi and Linda Cardellini, two previously unreported actors, have been confirmed to be also part of the cast of The Avengers: Age of Ultron, according to IGN.