Liam Hemsworth has joined the cast of 'The Expendables 2'.

The 'Hunger Games' actor will play a sniper in the forthcoming blockbuster sequel, though no other details of his exact role in the film have yet been revealed.

Liam is the latest in a long line of stars to be confirmed for the cast of the action film, which will be directed by Simon West.

Sylvester Stallone heads the movie, reprising his role as team leader Barney Ross, with Jason Statham, Mickey Rourke, Jet Li, Dolph Lundgren, Terry Crews and Randy Couture also returning.

In addition, Arnold Schwarzenegger and Bruce Willis, who made cameo appearances in the original 2010 movie, will also return but with their roles expanded.

Other newcomers to the series include Jean-Claude Van Damme, Nicolas Cage, John Travolta and Chuck Norris.

Sylvester said recently: "We'll have a big showdown between me and Van Damme, which has been anticipated for a long time, so it should be a good one. We've got Chuck Norris.

"I think Nic Cage. We're trying to work out different scenarios. I like using people that had a moment and then maybe have fallen on some hard times and give them another shot."

'The Expendables 2' is due in cinemas in August 2012.