Cast
Kevin HartGeorge (voice)
Thomas MiddleditchHarold (voice)
Ed HelmsCaptain Underpants / Mr. Krupp (voice)
Nick KrollProfessor Poopypants (voice)
Jordan PeeleMelvin (voice)
Kristen SchaalEdith (voice)
DeeDee RescherMs. Ribble (voice)
Brian PosehnMr. Rected (voice)
David SorenTommy (voice)
Mel RodriguezMr. Fyde (voice)
Susan FitzkerMs. Dayken (voice)
Lynnanne ZagerGeorge's Mom (voice)
Tiffany Lauren BennickeSad Girl (voice)
James RyanMime (voice)
Leslie David BakerOfficer McPiggly (voice)
