The Spooky Tale of Captain Underpants Hack-a-ween

Where are all of the Halloween decorations?

When Melvin tries to cancel Halloween, clever best friends Harold and George create their own spooky holiday -- and it's a huge success!

Cast

Nat Faxon

Jay Gragnani

Ramone Hamilton

Sean Astin

Dayci Brookshire

Clancy Brown

Jorge Diaz

Peter Hastings

Evan Kishiyama

David Koechner

Erica Luttrell

Patty Mattson