Bradley Cooper joins Marvel's 'Guardians of the Galaxy' as voice of Rocket Raccoon

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He's going from the worst "Hangover" of his life to the farthest reaches of the galaxy: Rocket Raccoon will be voiced by none other than Academy Award-nominated actor Bradley Cooper, Marvel announced on Friday (Aug. 30).

The "Silver Linings Playbook" star has officially joined the cast of Marvel's "Guardians of the Galaxy." He is set to voice to the fan-favorite raccoon, joining already cast Chris Pratt, Zoe Saldana, Michael Rooker, Lee Pace, Karen Gillan, and Dave Bautista. Action star Vin Diesel is currently in talks to voice Groot.

"Guardians of the Galaxy" -- Cooper's first voiceover work -- takes place in the far reaches of the Marvel Cinematic Universe, with an unlikely team of characters including Peter Quill, Gamora, Drax, Groot and Rocket Raccoon. The ragtag team of heroes must join forces to defeat a cosmic force of epic proportions. 

Directed by James Gunn, the live-action "Guardians of the Galaxy" hits theaters August 1, 2014.

Photo/Video credit: Getty Images/Marvel