Discover
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.
Original Release
07/13/2018
US Release
07/13/2018
Cast
| Name | Character |
|---|
| Nat Faxon | Captain Underpants / Mr. Krupp |
| Jay Gragnani | Harold |
| Ramone Hamilton | George |
| Sean Astin | Narrator |
| Trevor Devall | Smartsy Fartsy |
| Jorge Diaz | Melvin / Dr. Vil Endenemys |
| Peter Hastings | Comic Narrator |
| Evan Kishiyama | Steve 'Gooch' Yamaguchi |
| David Koechner | Mr. Meaner |
| Erica Luttrell | Erica |
Directors
Writers
Mark Banker, Sindy Boveda-Spackman, Dav Pilkey
Cast
| Name | Character |
|---|
| Nat Faxon | Captain Underpants / Mr. Krupp |
| Jay Gragnani | Harold |
| Ramone Hamilton | George |
| Sean Astin | Narrator |
| Trevor Devall | Smartsy Fartsy |
| Jorge Diaz | Melvin / Dr. Vil Endenemys |
| Peter Hastings | Comic Narrator |
| Evan Kishiyama | Steve 'Gooch' Yamaguchi |
| David Koechner | Mr. Meaner |
| Erica Luttrell | Erica |
Producers
| Name | Role |
|---|
| Peter Hastings | Executive Producer |
| Dav Pilkey | Executive Producer |
| Chris Prynoski | Executive Producer |
| Shannon Prynoski | Executive Producer |
| Ben Cawood | Producer |
| Todd Grimes | Producer |
| Ben Kalina | Producer |
| Peter McCown | Producer |
