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Captain Underpants and the Sickening Fumes of Smartsy Fartsy S01E12

24 min 7.5 (Series)

To steal Mr. Krupp's rule book from a tightly locked safe, the boys cook up a super-intelligent gas cloud who winds up turning against them.

Series Cast

Nat Faxon

Nat Faxon

Captain Underpants / Mr. Krupp (voice)
Jay Gragnani

Jay Gragnani

Harold (voice)
Ramone Hamilton

Ramone Hamilton

George (voice)
Sean Astin

Sean Astin

Narrator (voice)
Peter Hastings

Peter Hastings

Comic Narrator (voice)
Jorge Diaz

Jorge Diaz

Melvin (voice)
Dayci Brookshire

Dayci Brookshire

Jessica / Dressy (voice)
Evan Kishiyama

Evan Kishiyama

Steve 'Gooch' Yamaguchi (voice)

Tags

underwear elementary school alter ego superhero best friend principal baldness

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