| Pro | Roberta | Carter | A physician. Aka: Bobbie. |
| | Manuel | | Bobbie's colleague. |
| | Ed | Regis | The Jurassic Park's PR. Tour Guide. |
| | Elena | Morales | A local midwife. |
| | | | 1st Iteration |
| | Mike | Bowman | A real estate developer. |
| | Ellen | Bowman | Mike's wife. |
| | Christina | Bowman | Mike and Ellen's daughter. Aka: Tina. |
| | Dr. | Cruz | Tina's doctor. |
| | Marty | Guitterez | A senior researcher. |
| | Edward | Simpson | The Zoology expert from Columbia University. |
| | Richard | Stone | Head of Tropical Diseases Laboratory in Columbia University. |
| | Alice | Levin | A technician at the Bacteriology Lab. |
| | | | 2nd Iteration |
| | Alan | Grant | A dinosaur researcher. A paleontologist. |
| | Bob | Morris | A paleobotanist. |
| | Ellie | Sattler | Alan's student. |
| | Bob | Kerry | A dinosaur researcher. A paleontologist. |
| | John | Hammond | The owner of Jurassic Park. The Hammond Foundation owner. |
| | Donald | Gennaro | A legal counsel at InGen. |
| | Ian | Malcolm | A mathematician. One of Hammond's employees. |
| | Lewis | Dodgson | A geneticist. Head of Product Development at BioSyn. |
| | Fred | Hoyle | An astronomer. |
| | Daniel | Ross | Gennaro's boss. |
| | Hamachi | | The InGen's principal sponsor. |
| | Amanda | | Gennaro's daughter. |
| | Elizabeth | Gennaro | Ian Gennaro's wife. |
| | Norman | Atherton | Hammond's partner. |
| | Steingarten | | The head of BioSyn. |
| | Dennis | Nedry | Hammond's computer chief. |
| | E.D | Cope | The scientist who discovered
Brontosaurus. |
| | | | 3rd Iteration |
| | Tim | Murphy | Hammond's grandson. |
| | Alexis | Murphy | Tim's sister. Hammond's granddaughter. |
| | John | Arnold | The Jurassic Park's chief engineer. |
| | Robert | Muldoon | The Jurassic Park's warden. |
| | Henry | Wu | A chief geneticist at Jurassic Park. |
| | Dr. | Loy | Henry Wu's colleague. |
| | Barney | Fellow | Nerdy's colleague. |
| | Kathy | | One of Dr. Wu's nurses. |
| | Richard | Owen | The leading British anatomist. |
| | Alain | Richard | The Jurassic Park Chief. |
| | Dr. | Harding | The Jurassic Park's vet. |
| | | | Fourth Iteration |
| | Ralph | | The baby triceratops. |
| Epi | Marty | Guitterez | A researcher at Cararra Station. |
