Fourth-grade friends George and Harold have a shared love of pranks and comic books -- and turning their principal into an undies-wearing superhero.
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as Captain Underpants / Mr. Krupp (voice)
as Harold (voice)
as George (voice)
as Narrator (voice)
as Comic Narrator (voice)
as Melvin / Melvinborg (voice)
as Jessica / Dressy (voice)
as Steve 'Gooch' Yamaguchi (voice)
