When Melvin tries to cancel Halloween, clever best friends Harold and George create their own spooky holiday -- and it's a huge success.
Seung Woo Cha
Kevin Peaty
Nat Faxon
Jay Gragnani
Ramone Hamilton
Sean Astin
Dayci Brookshire
Clancy Brown
Jorge Diaz
Peter Hastings
Evan Kishiyama
David Koechner
Erica Luttrell
Patty Mattson
Brennan Murray
Kevin Michael Richardson
Mindy Sterling
DreamWorks Animation Television
