Cast[]
- Mario as Jimmy Neutron
- Peach as Carl Wheezer
- Luigi as Sheen Estevez
- Rosalina as Cindy Vortex
- Daisy as Libby Folfax
- Yoshi as Goddard
- Mama Mario as Judy Neutron
- Papa Mario as Hugh Neutron
- Barney as Timmy Turner
- Jeffrey as Cosmo Cosma
- Min as Wanda Fairywinkle-Cosma
- The Winkster as Denzel Crocker
- Kathy's Nana as Jorgen Von Strangle
- Baby Bop as Chester McBadbat
- BJ as A.J.
- Adam as Mr. Turner
- Amy as Mrs. Turner
- Riff as Vicky The Babysitter
- Bowser Jr. as Professor Calamitous
- Gooper Blooper as Shirley