Nat Faxon
Captain Underpants / Mr. Krupp (voice)
39 Folgen
Jorge Diaz
Melvin (voice), Melvin / Melvinborg (voice)
39 Folgen
Evan Kishiyama
Steve 'Gooch' Yamaguchi (voice)
39 Folgen
Erica Luttrell
Grace Wain (voice), Erica (voice), Erica / Plungerina (voice), Werica Ang (voice)
8 Folgen
Laraine Newman
Female Cop (voice), Ms. Ribble / Queen Zombee (voice), Ms. Ribble / Dr. Mentor (voice), Dr. Mentor / Ms. Ribble (voice), Ms. Ribble (voice), Ms. Ribble / Malison Saurus (voice)
8 Folgen
David Koechner
Mr. Meaner / Sergeant Boxers (voice), Mr. Meaner / Flabby Flabulous (voice), Mr. Meaner (voice), Dr. Will Boryew (voice), Mr. Meaner / Mr. Neamer / Brainy Blabulous (voice)
6 Folgen
Patty Mattson
Miss Anthrope / Chalice Aristocrab (voice), Miss Anthrope (voice), Miss Anthrope / Clogneta (voice)
6 Folgen
Clancy Brown
Mr. Ree / Splotch (voice), Mr. Ree (voice)
4 Folgen
Eric Bauza
Robius (voice), Rap Talkwell (voice), Rap Talkwell / Mr. Gigglenose (voice)
3 Folgen
Kevin Michael Richardson
George's Dad / Dune Buggy (voice), Diddlysaurus / Fingers (voice), Diddlysaurus / The Schmoozer (voice)
3 Folgen
Mindy Sterling
Melvin's Mom (voice), Harold's Mom / Melvin's Mom (voice)
3 Folgen
Nolan North
Cash Networth / Salamangler (voice), Cash Networth / Lee Dingman (voice), Nanozero / Flash Flood (voice)
3 Folgen
Tress MacNeille
Ms. Hurd (voice), Ms. Hurd / DJ Drowsy Drawers (voice)
2 Folgen
Maggie Wheeler
Ms. Yewh / TP Mummy (voice), Lunch Lady (voice)
2 Folgen
Fred Tatasciore
Keithicus / Rippedicus / Guardicus (voice), Furculees / Chief Hairococha (voice)
2 Folgen
Max Koch
Laserlightmare (voice), Hank (voice)
2 Folgen
