Inspector Gadget / Robo Gadget / John Brown
Sanford Scolex
Brenda / Robobrenda
Penny
Kramer
Mayor Wilson
Sikes (as Michael G. Hagerty)
Chief Quimby
Gadgetmobile (voice)
Artemus Bradford (as René Auberjonois)
Thelma
Mr. T
Famous Big Guy with Silver Teeth
Famous Villain with Deadly Hat
Famous Identifier of Sea Planes (as Robert N. Bell)
Famous Native American Sidekick
Famous Assistant to Dr. Frankensomething
Son Before Second Son
Bane of the Bumbling, Idiotic Yet Curiously Successful French Detective's Existence / Robobrendaerobics Rhythmless Group Member
Aaron Meyerson
Out of Control Bus Driver
In Terrible Jeopardy Young Girl
In Terrible Jeopardy Young Girl (as Ivory Dilley)
Amazed Boy on Bike
Robotic Foot Dancer (as W. Bob Gaynor)
Fantastic Doctor
Mayor's Sychophantic Assistant
Officer McMurphy
Officer Johnson
Hospital Secretary
Nurse in Hallway
Sore Guru
Wet, Green Businessman
Hot Dog Vendor
Assistant Car Thief
Period Photographer
Snoopy News Anchor
Showgirl
Showgirl (as Lora Lyn Peterson)
Twin Bartender (as Jim Thiel)
Twin Bartender
'Mr. D.I.C.' - Party Guest
'Trophy Bride' - Party Guest
'Zoftig Woman' - Party Guest
'Little Man' - Party Guest
'Flat Top Guy' - Party Guest
'Flash' - Party Guest
'Go Girl' - Party Guest (as Dorothy Davis)
'Mr. Gadget' - Party Guest
Scared Witless Autograph Kid (as Matthew Murray)
Angry Father of Kid
News Reporter (as Rick Lafonde)
Bewildered Japanese Tourist
Waitress on Bridge
Man 'without' Toupee
Robobrendaerobics Rhythmless Group Member
Brain (voice)
Dancer (uncredited)
Pedestrian on Street (uncredited)
Peter Lorre (uncredited)
Gadget Nurse (uncredited)
Assistant Inventor (uncredited)
Governor (uncredited)
Pedestrian (uncredited)
Driver (uncredited)
Dog Walker (uncredited)
E.M.T. (uncredited)
Cop (uncredited)
Musician (uncredited)
Ice Cream Man (uncredited)
Pretty Girl (uncredited)
(uncredited)
Security Guard for Claw (uncredited)
Singer (uncredited)
Fireman (uncredited)
Bicyclist (uncredited)
Desk Cop (uncredited)
Pedestrian on Bridge (uncredited)
Vomit Girl (uncredited)
Car Jacker #1 (uncredited)
Boy in Crowd (uncredited)
Extra (uncredited)
Reporter (uncredited)
Gala Waiter (uncredited)
Casey Burr (uncredited)
Police Officer (uncredited)