Johnny Knoxville has been cast to provide the voice of Leonardo in Michael Bay and Jonathan Liebesman's Teenage Mutant Ninja Turtles movie. It was also announced that Tony Shalhoub will provide the voice of Master Splinter.
Pete Ploszek played the role of Leonardo while they were shooting the film, and Seinfeld‘s Danny Woodburn played Splinter. According to Deadline, the actors were always open to changing the voicing component and that those actors were only "guaranteed to physically perform the roles in costume."
Knoxville and Shalhoub are fun choices to voice these characters. There's no word on whether more actors will be cast to voice the other turtles, but it's definitely a possibility.
"The city needs heroes. Darkness has settled over New York City as Shredder and his evil Foot Clan have an iron grip on everything from the police to the politicians. The future is grim until four unlikely outcast brothers rise from the sewers and discover their destiny as Teenage Mutant Ninja Turtles. The Turtles must work with fearless reporter April and her wise-cracking cameraman Vern Fenwick to save the city and unravel Shredder’s diabolical plan."
The movie comes out on August 8th, and to watch the trailer for the film again, click here.