Gadget is still a klutz and Dr. Claw has a vicious new plan that makes him a super-hero in disguise to try to ruin Gadget and to take over the world, but as usual Gadget in his zany ways wins.
| Actor | Role |
|---|---|
 Maurice LaMarcheInspector Gadget (voice) | Inspector Gadget (voice) |
| TTina BushFemale Superhero (voice) | Female Superhero (voice) |
 Jim ByrnesChief Quimby (voice) | Chief Quimby (voice) |
 Michael DobsonR2K (voice) | R2K (voice) |
 Brian DrummondDr. Claw (voice) | Dr. Claw (voice) |
 Blu MankumaVelvetmobile (voice) | Velvetmobile (voice) |
 Tegan MossPenny (voice) | Penny (voice) |
 Colin MurdockProf. Gorgonzola (voice) | Prof. Gorgonzola (voice) |
 Richard NewmanOtto (voice) | Otto (voice) |
| JJ. WhiteGadgetmobile (voice) | Gadgetmobile (voice) |
 Dale WilsonDevon Debonair (voice) | Devon Debonair (voice) |