Dennis Nedry was a computer programmer at Jurassic Park and the main human antagonist of the first film. Due to his financial problems and low salary, he accepted a bribe from Biosyn to smuggle dinosaur embryos off the island. His last name is an anagram of nerdy.
He is devoured by a Dilophosaurus. He was directly responsible for the events that happened during the film.
He was played by Wayne Knight who played Newman "Hello Newman" in Seinfeld and was the voice of Al in Toy Story 2.