Antagonists Wiki
~ Dennis hacks Ray Arnold's computer
Dennis Nedry
Background information
Feature films Jurassic Park
Television programs
Video games Jurassic Park: The Game (corpse)
Lego Jurassic World
Park attractions
Actor Wayne Knight
Performance model
Character information
Other names None
Personality Greedy, lazy, provocative, troublesome, cowardly, snide
Appearance Obese, black hair, brown eyes, glasses
Occupation Computer Programmer
Affiliations Bad/Neutral
Goal To steal the dinosaur embryos so he can earn $1,500,000 from Lewis Dodgson (failed).
Friends Lewis Dodgson
Enemies John Hammond, Robert Muldoon, Ray Arnold, Juvenile Dilophosaurus
Powers and abilities
Fate Gets killed by a Juvenile Dilophosaurus
Quote "Ah, no wonder you're extinct. I'm gonna run you over when I come back down."

Dennis Nedry is the central antagonist of the science-fiction novel Jurassic Park and the main antagonist of the 1993 film of the same name. He is a troublesome and overweight computer-network engineer for the successful dinosaur-cloning faculty. He was hired to program the system without many details on what the park actually did and was called to the island to fix numerous bugs in the system.

Due to the low salary that left him struggling to make a living, Nedry turned on park owner John Hammond and stole dinosaur embryos to a rival theme park that has failed to make their own dinosaurs. His meddling resulted in almost all of the dinosaurs escaping and running amok, as well as the deaths of Donald Gennaro and himself. And while he didn’t intend it for happen, he played a role in the deaths of Ray Arnold and Robert Muldoon as well.

He was portrayed by Wayne Knight who also voiced Al McWhiggin in Toy Story 2.

Jurassic Park

John Hammond refused to pay him any extra money for his work. Eventually, Lewis Dodgson of Biosyn (a rival company) offered Nedry $1,500,000 to steal embryos worth of 15 dinosaur species from Jurassic Park's labs. In order to do this—and make a swift escape from the visitor center and drive away in a jeep—Nedry had to turn off the park's security systems, including the electric fences surrounding the dinosaur paddocks, with the exception of the raptor fences. Without electricity, the electric fences shut down, thus allowing the dinosaurs to escape.

Later that night, Dennis was driving toward the docks when he got lost during the angry storm and accidentally hit a stack of logs. His car got stuck, so he had to get out and use a winch to help him get out of this dilemma. Unfortunately, while looking for a tree to tie the other end of the winch to, he came across a juvenile Dilophosaurus. Dennis, not knowing of their aggressive nature since he knew nothing about dinosaurs, tried to shoo it away with a stick. This was a failed attempt, and the Dilophosaurus began spraying venom in Dennis's chest and then into his eyes. Dennis, now blind, attempted to make his way for his car. He wiped the venom off of his eyes and got in the car. Upon closing the door he looked to his left and saw that the Dilophosaurus had found its way into the car, where it began to eat Dennis alive.


  • While Dennis Nedry has a justification for betraying Hammond in the book, in the movie he has none.

External Links


Jurassic Park Antagonists

Dr. John Hammond† | Lewis Dodgson† | Dennis Nedry† | Billy Yoder† | Dr. Laura Sorkin† | Peter Ludlow† | Roland Tembo | Dieter Stark† | Vic Hoskins† | Henry Wu | InGen Contractor | Eli Mills† | Ken Wheatley† | Gunnar Eversol† | Daniel Kon | Kash D. Langford | Mitch & Tiff | Hawkes | Rainn Delacourt† | Soyona Santos

Dinosaurs and Other Prehistoric Creatures

Tyrannosaurus rex | Velociraptors (The Big One† | The Big One's Pack† | Alpha's Pack) | Spinosaurus | Pterosaurs | Mosasaurus | Indominus rex† | Indoraptor† | Toro | Scorpios rex† | Giganotosaurus