Best friends George and Harold — along with their classmates and tyrannical principal — are recruited for a mysterious mission in outer space.
Nat Faxon
Captain Underpants / Mr. Krupp (voice)
Jay Gragnani
Harold (voice)
Ramone Hamilton
George (voice)
Sean Astin
Narrator (voice)
Peter Hastings
Comic Narrator (voice)
Chuggington
The Busy World of Richard Scarry
All Grown Up!
Fancy Nancy
Clifford the Big Red Dog
Fish Hooks
Ridley Jones
The Weekenders
Curious George
Rugrats
