Debi Derryberry
Jimmy Neutron (voice)
Tara Strong
Timmy Turner (voice)
Megan Cavanagh
Judy Neutron (voice)
Mark DeCarlo
Hugh Neutron (voice)
Rob Paulsen
Carl Wheezer / Announcer (voice)
Jeffrey Garcia
Sheen Estevez (voice)
Carolyn Lawrence
Cindy Vortex (voice)
Crystal Scales
Libby Folfax (voice)
Frank Welker
Goddard (voice)
Susanne Blakeslee
Wanda (voice)
Daran Norris
Cosmo / Dad / Jorgen Von Strangle (voice)
Grey DeLisle
Vicky / Principal Waxelplax (voice)
Carlos Alazraqui
Denzel Crocker (voice)
Dee Bradley Baker
Sanjay / Elmer / Fairy Agent #1 (voice)
Gary LeRoi Gray
A.J. (voice)
Faith Abrahams
Francis (voice)
Jim Ward
Tour Guide (voice)
Jason Marsden
Chester McBadbat (voice)