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)