John Brown is a bumbling but well-intentioned security guard who is badly injured in an explosion planned by an evil mastermind. He is taken to a laboratory, where Brenda, a leading robotics surgeon, replaces his damaged limbs with state-of-the-art gadgets and tools. Named "Inspector Gadget" by the press, John -- along with his niece, Penny, and her trusty dog, Brain -- uses his new powers to discover who was behind the explosion.

Matthew Broderickas Inspector Gadget / Robogadget / John Brown
Rupert Everettas Sanford Scolex
Joely Fisheras Brenda / Robobrenda
Michelle Trachtenbergas Penny
Andy Dickas Kramer
Cheri Oterias Mayor Wilson
Mike Hagertyas Sikes
Dabney Colemanas Chief Quimby
D.L. Hughleyas Gadgetmobile (voice)
René Auberjonoisas Artemus Bradford
Adam Greenberg