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Back in my day we didn't spend all day tapping! Of course my day was the cretaceous...
~ Grampasaurus.

Grampasaurus, real name Abraham Simpson, is the main protagonist of the Tree House of Horror XXXII's first act. He's a sentient & sapient dinosaur created by Mr. Burns.

He's voiced by Dan Castellaneta.


Mr. Burns created a park called Geriatric Park for elderly people to live out their best lives. But, in all reality, Mr. Burns turned everyone there into a Dinosaur, including Abe.

Lisa meets up with Abe, and the two hang out. When he spot Nelson, he wonders what he tastes like, and so he took out his dentures, and gummed Nelson down. He loved the taste of human meat and started manipulating people, and then gummed them down. When Lisa tried to stop Abe, now known as Grampasaurus, he doesn't listen, and rather starts a Dinosaur Rampage.

He gummed down Mr. Burns, and then broke into Geriatric Park, said a long speech, and led a Dinosaur Rampage. He terrorized Springfieldians, and even used the dinosaurs to push trucks out of town, limiting the food supply. After some Stern talking to from Lisa, and Grampasaurus taking a "long Cretaceous nap", he stood down and "led a losing battle" as he said. This was actually just Grampasaurus manipulating Lisa, as he then led a Dinosaur counter attack killing even more Springfieldians.

After he argues with Springfieldians about evolution, his brain gets sore and he decides to stand down, really this time. The act then ended, and we keep Grampasaurus as a skin.

In Game

Grampasaurus can be purchased along with the Geriatric Park Dome for 195 dino skulls, and for a limited time too. You can also keep Grampasaurus as a skin after the event ends.


               The Simpsons Logo.svg Villains

Springfield Republican Party
Mr. Burns | Birch Barlow | Lindsey Naegle | Count Dracula | Blue-Haired Lawyer | Waylon Smithers

Terwilliger Family
Cecil Terwilliger | Dame Judith Underdunk | Francesca Terwilliger | Gino Terwilliger | Robert Terwilliger Jr. | Robert Terwilliger Sr.

Springfield Mafia
Fat Tony | Fit Tony | Johnny Tightlips | Legs | Louie | Don Vittorio D'Maggio | Frankie the Squealer | Johnny the Snitch | Nicky Bluepants Altosaxophony | Joey | Dante Calabresi Sr. | Dante Calabresi Jr. | Primo | Shotgun Pete

Environmental Protection Agency
Russ Cargill

Globex Corporation
Hank Scorpio | Miss Goodthighs

Recurring Characters
Agnes Skinner | Artie Ziff | Baby Gerald | Constance Harm | Dolph Starbeam | God | Hans Sprungfeld | Herman Hermann | Itchy | Jessica Lovejoy | Jimbo Jones | Kearney Zzyzwicz | Jack the Ripper | Mr. Largo | Nelson Muntz | Patty & Selma Bouvier | Senator Mendoza | Snake Jailbird | Space Mutants | Wainwright Montgomery Burns | Gina Vendetti

Treehouse of Horror
Bart (Fly) | Burnsiverse | Count Burns | Zombies | Gremlin | Groundskeeper Willie | Homer's Clones | Hugo Simpson II | Jonathan Frink Sr. | Kang and Kodos | Killer Toupée | King Snorky | Killer Krusty Doll | Lard Lad | Muttonchop Murderer | Ned Flanders | Seymour Skinner | The Blob | The Devil | Dr. Julius Hibbert | Bill the Kid | Moe-Looking Satan | The Grand Pumpkin | Witch Marge | Rachel | Maggie Simpson

Guest Star Characters
Will Wright

Other Characters
Adil Hoxha | Adolf Hitler | Andy Hamilton | Baby Button Eyes | Bart Simpson's Creatures | Blue-Eyed Man | Bob Arnold | Captain Mordecai Barrows | Cesar & Ugolín | Chett Englebrick | Clownface | Cooder | Comic Book Guy (Brick Like Me) | Devan & Quenley Woosterfield | Dexter Colt | Dwight Diddlehopper | Frank Grimes, Jr. | Francine Rhenquist | French Chef | Glamorous Godfrey | Howard K. Duff VIII | Ironfist Burns | Jack Crowley | Jack Lassen | Julia | Hell's Satan | Kindergarten Teacher | Larry Kidkill | Lucille Botzcowski | Sparklemon | Lyle Lanley | Les Moore | Jim Hope | Mav & Portia | Molloy | Movementarians | Mr. Dirt | Nigel Bakerbutcher | Officer Krackney | Professor Werner Von Brawn | Rex Banner | Robotic Richard Simmons | Shadow Knight | Stanley DeGroot | The Leader | William Shakespeare | Jay G | Kostas Becker

Video Games
Simpsons Arcade
Hench Dogs | Robot Burns | Mr. Smithers

The Simpsons Game
Matt Groening | Lard Lad | God | King Snorky | Patty & Selma Dragon | Stubborn Ape

The Simpsons: Tapped Out
Mr. Burns | Russ Cargill | Frankie the Squealer | Sven Holly | Evil Homer | Bandits | Count Dracula | Rich Texan | Fernando Vidal | Grampasaurus