Best friends George and Harold — along with their classmates and tyrannical principal — are recruited for a mysterious mission in outer space.
Animation | Kids
Casts
Nat Faxon
Captain Underpants / Mr. Krupp (voice)
Jay Gragnani
Harold (voice)
Ramone Hamilton
George (voice)
Sean Astin
Narrator (voice)
Peter Hastings
Comic Narrator (voice)
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