'Boston Legal' star joins Robert Downey Jr in Joss Whedon's forthcoming sequel

James Spader is to play the main villain, Ultron, in Joss Whedon’s sequel to The Avengers.

Marvel broke the news on its official website yesterday (August 29). Spader, 53, won three Emmy awards for his role as maverick attorney Alan Shore in US TV dramas The Practice and Boston Legal and has racked up numerous movie appearances over the years including Lincoln, Stargate and Sex, Lies And Videotape.

Whedon announced at San Diego Comic-Con last month (July) that his forthcoming sequel has now been given its final title: The Avengers: Age Of Ultron. Ultron, a well-known supervillain from the Marvel universe, is described in his official bio as “a criminally insane rogue sentient robot dedicated to the conquest and the extermination of humanity”.

Spader joins Robert Downey Jr, who recently signed a deal to return as Iron Man in another two Avengers movies. The rest of Age Of Ultron‘s cast has yet to be confirmed but Marvel has promised a mix of “favourites from the first Avengers film and new Marvel characters never before seen on the big screen”.

Whedon is currently working on his script for The Avengers: Age Of Ultron and shooting is due to begin in London early next year (2014). Marvel has set a release date of May 1, 2015.