Best friends George and Harold — along with their classmates and tyrannical principal — are recruited for a mysterious mission in outer space.
Peter Hastings
Comic Narrator (voice)
10 episodes
Sean Astin
Narrator (voice)
8 episodes
Nat Faxon
Captain Underpants / Mr. Krupp (voice)
7 episodes
Jay Gragnani
Harold (voice)
7 episodes
Ramone Hamilton
George (voice)
7 episodes
Secunda Wood
Moxie Swaggerman / Hailey Comett (voice)
5 episodes
David Koechner
Sqworg (voice)
4 episodes
Nolan North
Dr. Shifty Fitzgibbons / Jett Wingman (voice)
4 episodes
Gary Anthony Williams
Dupe Licitous (voice)
3 episodes
Jorge Diaz
Livmen / Stewart / Statrew (voice)
1 episode
Breaking Bad
