Peter Hastings is a producer of Animaniacs, Pinky and the Brain, Disney's One Saturday Morning, Catscratch, Teenage Mutant Ninja Turtles (2012), Kung Fu Panda: Legend of Awesomeness, Kung Fu Panda: The Dragon Knight and The Epic Tales of Captain Underpants and director and voice actor of Dog Man in DreamWorks' Dog Man Movie.
Hastings had a poor track record in creating live-action films, only making his directorial debut with the Disney film, The Country Bears, a critically and commerically box office failure that nearly cost his live-action directing career entirely for almost 23 years.
It was claimed by Max Koch in the comments under Peter's instagram post about the DreamWorks' Dog Man Movie that he is the voice of Dog Man (and his counterparts Officer Knight and Greg the Dog) and is later confirmed by DreamWorks.