Among all the raves for Guardians of the Galaxy, there’s been a lot of love for an actor we don’t even see: Bradley Cooper, voice of scene-stealing mutant raccoon Rocket (Vin Diesel’s Groot is great too, but he does utter only four words). Casting is key in all movie roles. And for non-physical parts, relying solely on the actor’s voice to convey everything they can offer the character, maybe even more so. Even a thesp as great as Colin Firth recently got replaced as the voice of Paddington in the upcoming film by new Bond ‘Q’ Ben Whishaw, when the filmmakers realised Firth sounded “too mature” for a young Peruvian bear who ends up in London (curiously arriving with a cut-glass English accent to boot). Read more