Cast[]
- Lynn Loud as Jimmy Neutron
- Leni Loud as Carl Wheezer
- Lori Loud as Sheen Estevez
- Lincoln Loud as Cindy Vortex
- Clyde McBride as Libby Folfax
- Charles as Goddard
- Lynn Loud Sr. as Judy Neutron
- Rita Loud as Hugh Neutron
- Fantasio as Timmy Turner
- Gaston Lagaffe as Cosmo Cosma
- Madameloiselle Jeanne as Wanda Fairywinkle-Cosma
- Yves Lebrac as Denzel Crocker
- Hagar The Horrible as Jorgen Von Strangle
- Gaston's Cat as Chester McBadbat
- Gaston's Seagull as A.J.
- Spirou as Mr. Turner
- Jules-De-Chez-Smith-En-Face as Mrs. Turner
- Monsieur De Mesmaeker as Vicky The Babysitter
- Agnes Johnson as Professor Calamitous
- Bobby Santiago as Shirley