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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Top cast
Nat FaxonCaptain Underpants / Mr. Krupp (voice)
Jay GragnaniHarold (voice)
Ramone HamiltonGeorge (voice)
Sean AstinNarrator (voice)
Peter HastingsComic Narrator (voice)
Jorge DiazMelvin (voice)
Dayci BrookshireJessica / Dressy (voice)
Evan KishiyamaSteve 'Gooch' Yamaguchi (voice)
