The cast continues to grow to epic proportions for the new Muppets movie. According to THR, three more actors have joined the film including an English comedian, a starlet, and a Hollywood legend. Ricky Gervais, Emily Blunt, and Mickey Rooney are the latest thespians to sign on for the project that’s already filled to the brim with talent.

According to the trade, the trio of actors will all have bit parts in the film similar to Alan Arkin, Jack Black, Billy Crystal, Zach Galifianakis and Jean-Claude Van Damme’s appearances.

Official Synopsis:

“The Greatest Muppet Movie Ever Made is about Gary, Mary, and Walter (a man, his girlfriend, and the man’s life-long nondescript, brown puppet best friend) getting the old Muppet gang – now retired entertainers known for the same Muppet show we know them from – together to save the TV studio that the original show was shot in. A villain, Tex Richman, bent on drilling for oil underneath the studio, is due to take over the studio in weeks, and the only way to stop him? Putting on a show that draws ten million viewers.”

The film is directed by James Bobin and stars Jason Segel, Amy Adams, Chris Cooper, and Rashida Jones in leading roles.

The Muppets is scheduled to hit theaters on December 25, 2011.

What do you think of the latest additions to the cast?