The Michael Bay-produced Teenage Mutant Ninja Turtles is still casting! Well, voice casting; the film has added Johnny Knoxville and Tony Shalhoub as Leonardo and Splinter, respectively.
Those roles were originally voiced by the actors who mocapped them - Pete Ploszek was Leo and Danny Woodburn (Mickey Abbott, the little person on Seinfeld) was Splinter - but somewhere along the way more marketable names were decided upon. Does this mean the rest of the Ninja Turtles will be getting name-brand voice actors?
There are reports of reshoots happening right now as well, although none of that will make a difference in the look of the Turtles. The movie is simply coming too soon for Paramount to add snouts to their gross baby dick-head creatures now.