Leonardo DiCaprio To Voice Jack Frost Leonardo DiCaprio is getting animated for the first time in his career. He'll make his toon debut in DreamWorks Animation's "The Guardians," voicing a twist on the Jack Frost character. Just as DWA's "Shrek" offered a revisionist view of the fairy-tale universe, "The Guardians" reimagines five popular childhood heroes -- Santa, the Easter Bunny, the Tooth Fairy, the Sandman and Jack Frost -- as members of an elite superhero squad who join forces to fight an evil spirit named Pitch (which suggests there are at least five more juicy voice parts yet to be filled). The high-concept variation hails a forthcoming series of books by William Joyce to be called "The Guardians of Childhood." Produced by Christina Steinberg and Nancy Bernstein, toon is targeted for release on Nov. 2, 2012, and marks the feature debut of director Peter Ramsey, who helmed the DWA Halloween special "Monsters vs. Aliens: Mu...