Disney Fan Fiction Wiki
""The Professor's on the run!""
―J. Curby Gremlin once he sees Professor Zündapp drive away from Holley.
J. Curby Gremlin
J. Curby Gremlin
Background information
Feature films Cars 2
Television programs
Video games
Park attractions
Portrayed by John Mainieri
Portrayed by
Animators John Lasseter
Voice John Mainieri
Performance model 1974 AMC Gremlin
Designer 1974 AMC Gremlin
Honors and awards
Character information
Full name John Curby Gremlin
Other names J. Curby
Personality Evil, rude, bad-tempered, sleek, angry, greedy, cruel
Occupation Head of Gremlin Family
Professor Zündapp's henchmen
Goal Destroy the World Grand Prix

Aid Sir Miles Axlerod in his villainous plan to take over the world with the other members of the Lemons
Kill Lightning McQueen and Mater (all failed)

Home Detroit, Michigan, United States
Relatives Gremlin Family
Allies Professor Zündapp's henchmen
Enemies Finn McMissile, Mater, Holley Shiftwell, Lightning McQueen
Likes Sabotaging WGP
Dislikes Being mocked
Powers and abilities
Weapons Concealed
Quote "The Professor's on the run!"

J. Curby Gremlin is the supporting antagonist of Cars franchise. he was the Lemons who worked with Professor Zündapp and the head of Gremlin Family.


Cars 2[]

He and many members of the Lemons attended a meeting, so they could all discuss on how to discredit Allinol. The Lemons were using the electric pulse generator that looked like a camera to make the racers blow their engines and crash. This would ensure that all the cars would keep using convention fuel to secure the profits of the whole Lemon organization. He liked this idea, and he mentioned that he's from Detroit, Michigan when Victor Hugo entered the meeting room in Italy.

After Professor Zündapp faced his defeat, J. Curby and many more members of the lemons showed up. When everyone was fighting, Red showed up and successfully sprayed J. Curby and some of the members with his hose, leaving the terrorist trapped at the fence near one of the buildings in London, the location where he was arrested.


Like all the other Lemons, J. Curby Gremlin is a cold-hearted terrorist who would do anything for a quick buck. He is also notorious for being a crime boss and an iron-fisted family leader.

Apparently, he is very sadistic because he loved the idea of discrediting Allinol by using the electromagnetic pulse generator disguised as a camera which would cause the racers to blow their engines, crash, and make sure that every car would keep on using ordinary fuel to secure the profits of the Lemon organization.


  • He is a 1974 AMC Gremlin with a purple paint coat and the yellow hockey stripe.
  • His license plate number is RB 214
  • J. Curby is the only head lemon who was seen with a weapon.
  • According to the French version of Cars 2, J. Curby's full name is John Curby Gremlin.


Media: Cars | Cars 2 | Cars 3 | Cars (soundtrack) | Cars - The Video Game | Cars 2: The Video Game | Cars Mater-National | Cars Race-O-Rama | Mater and the Ghostlight | Cars Toons | Cars: Radiator Springs Adventures | Kinect Rush: A Disney Pixar Adventure | Disney INFINITY

Characters: Lightning McQueen | Mater | Sally Carrera | Mack | Doc Hudson | Flo | Ramone | Sheriff | Finn McMissile | Holley Shiftwell | Luigi | Guido | Sarge | Fillmore | Red | Chick Hicks | The King | Miles Axlerod | Francesco Bernoulli | Professor Zündapp | Grem | Acer | Siddeley | Tomber | Tony Trihull | Lizzie | Victor Hugo | Vladimir Trunkov | Tubbs Pacer | Minny | J. Curby Gremlin | Mia and Tia | Alexander Hugo | Uncle Topolino | Mama Topolino | Van | Ivan | The Queen | Leland Turbo | Crabby | Ichigo | Jay Limo | Mac iCar | Pope Pinion IV | Chauncy Fares | Mario Andretti | Jeff Gorvette | David Hobbscap | Rip Clutchgoneski | Galloping Geargrinder | Tex Dinoco | Petrov Trunkov | Clayton Gentlebreeze | Mel Dorado | Rod "Torque" Redline | Shu Todoroki | Lewis Hamilton | Carla Veloso | Miguel Camino | Snot Rod | DJ | Brent Mustangburger | Nigel Gearsley | John Lassetire | Austin Littleton | Marco | Stu Bop | Sulley | Mike | Boost | Wingo | Dex | Elvis | Kabuto | Harv | Wilmar Flattz | Stanley | Bud | Raoul ÇaRoule | The Delinquent Road Hazards | Max Schnell | Vroomaroundus Bugus | Mama Bernoulli | Darrell Cartrip | Frank | Al Oft | Todd | Donna Pits | Stacy | Greta | Patty | Rusty Rust-eze | Artie | Barney Stormin | Bessie | Giulia | Fred Pacer | Gil | Junior | Kori Turbowitz | Leroy Traffik | Lynda King | T.J. | Screamin' Banshee | Zil | Vern | Tow | Popemobile | Mike Lorengine | Gearett Taylor | Maurice Wheelks | Prince Wheeliam | Sir Harley Gassup| Mary Esgocar | Sajan Karia | Krate Rainson Wash | Kai & Tai Gremlin | Tolga Trunkov | Marcelo & Marco

Locations: Radiator Springs | Flo's V8 Cafe | Luigi's Casa Della Tires | Radiator Springs City Hall | Courthouse & Fire Department | Ramone's House of Body Art | Cozy Cone Motel | Fillmore's Organic Fuels | Sarge's Surplus Hut | Tow Mater Towing & Salvage | Doctor Hudson: Dr. of Internal Combustion | Radiator Springs Curios | Radiator Springs Drive-In Theatre | Wheel Well Motel | London, England | Big Ben | Paris, France | Porto Corsa | Tokyo | California | Los Angeles International Speedway | Piston Cup | Ornament Valley | Motor Speedway of the South | Cadillac Range | Carburetor County | U.S. Route 66

Attractions: Cars Race Rally | Cars Land | Radiator Springs Racers | Mater's Junkyard Jamboree | Luigi's Flying Tires

Songs: Real Gone | Life is a Highway | Our Town | Route 66 | Behind the Clouds | You Might Think | Collision of Worlds