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John DiMaggio

Position: Voice of BlackJack SquarePants
Voice Of: BlackJack SquarePants
Biography: A former comedian, appearing on stage as part of a comic duo named "Red Johnny and the Round Guy" and has several on-screen credits, such as Steve Ballmer in Pirates of Silicon Valley (the docudrama about the history of Apple Computer and Microsoft) and as the recurring character Dr. Sean Underhill on Chicago Hope.