Dr. Alan Grant

• Badass Beard
• Badass Bookworm
• Determinator
• Friend To All Children
• Only Sane Man
• Walking Tech Bane

Dr. Ellie Sattler

• Bare Your Midriff
• Hot Scientist
• Ms. Fanservice: More or less all the male characters comment on her to themselves privately.
• She's Got Legs: Ian Malcolm and Tim Murphy both take note of them.

Dr. Ian Malcolm

• Brutal Honesty
• Cassandra Truth
• Cloudcuckoolander: Especially while high on morphine
• Deadpan Snarker
• Jerk with a Heart of Gold
• Meta Guy: Mildly.
• Not Quite Dead
• Only Sane Man
• Tall, Dark and Snarky

John Hammond

• Asshole Victim
• Corrupt Corporate Executive
• Jerkass
• Karmic Death
• Manipulative Bastard
• Never My Fault
• Only in It for the Money

Dr. Martin 'Marty' Guttierez

• Mr. Exposition

Alexis Murphy

• Crying Little Kid
• The Load
• Tomboy

Tim Murphy

• Hero Worshipper
• Male Gaze: He checks out Ellie's legs.

Dr. Lewis Dodgson

• Big Bad
• The Man Behind the Man
• Manipulative Bastard
• Smug Snake

John Arnold

Donald Gennaro

• Took a Level in Badass

Robert Muldoon

• The Alcoholic
• Badass
• Great White Hunter
• Nice Hat
• Rare Gun

Dennis Nedry

• Asshole Victim
• Blind Without 'Em
• Dropped Glasses
• Fat Bastard
• Fat Slob
• Jerkass
• Just Desserts
• Karmic Death
• The Mole
• Significant Anagram: "Nedry" – "nerdy."
  • His full name: "Dennis Nedry" = "Nerdy Sinned".
• Smug Snake
• Villainous Glutton

Ed Regis

• Child Hater
• Dirty Coward
• Jerkass
• Slimeball

Dr. Henry Wu

• Asian and Nerdy

Richard Levine

• The Worm Guy

Jack 'Doc' Thorne

• Badass Bookworm

Eddie Carr

Kelly Curtis

RB 'Arby' Benton

• Wise Beyond Their Years

Dr Sarah Harding

• Action Girl

Howard King

• Minion with an F in Evil

George Baselton

Dr. Alan Grant (Sam Neill)

• Badass Bookworm
• Chekhov's Gun
• Child Hater: At first.
• Nice Hat
• May-December Romance: With Ellie in the first movie.
• Only Sane Man
• Walking Tech Bane
• The Worm Guy

Dr. Ellie Sattler (Laura Dern)

• Deadpan Snarker: When Hammond is explaining that the attractions at the park will drive kids wild, Alan asks "What are those?" Ellie replies with "Small versions of adults, honey."
• Gondor Callsfor Aid: In the third film, she calls in the Marines after she gets nothing but a garbled message from Alan.
• Hollywood Nerd
• Promoted to Love Interest
• May-December Romance: With Alan in the first film.
• She's Got Legs

Dr. Ian Malcolm (Jeff Goldblum)

• Cassandra Truth
• Cloudcuckoolander
• Character Exaggeration
• Deadpan Snarker
• Disappeared Dad: His daughter out-right accused him of as much, he gets better though.
• Jerk with a Heart of Gold
• Only Sane Man
• Really Gets Around: "I'm always on the lookout for the future ex-Mrs. Malcolm."
• Tall, Dark and Snarky
• Took a Level in Badass: Say what you will about chaos theory, but this guy outran 2 T-Rexes and a pack of Raptors.

John Hammond (Richard Attenborough)

• The Atoner: In the second film.
• Catch Phrase: "We spared no expense."
• Cool Old Guy
• Disney Theme Park: What Hammond obviously wanted "Jurassic Park" to be. Fitting considering the movie verison of the character is pretty much a Walt Disney clone.
• Just Think of the Potential
• Look on My Works, Ye Mighty, and Despair: At the end of the first film.
• Man in White
• Schrödinger's Cat
• Spared by the Adaptation
• Too Dumb to Live
• Well-Intentioned Extremist

Robert Muldoon (Bob Peck)

• Badass
• Death by Adaptation
• Great White Hunter
• He Who Fights Raptors
• The Hunter Syndrome Caught a bad case of this when he and Dr. Sattler were on ther way to the generator room, and he got a little side-tracked.
• Nice Hat
• Rare Gun
• The World's Expert on Getting Killed

Ray Arnold (Samuel L. Jackson)

• An Arm and a Leg: Poor guy, after Ellie comes looking for him... an arm is the only thing of his that she finds.
• Badass Bookworm
• Black and Nerdy
• Deadpan Snarker
  "Hold on to your butts!"
• Good Smoking, Evil Smoking: A very rare example of a good-aligned chain-smoker who isn't an Anti-Hero.

Donald Gennaro (Martin Ferrero)

• Amoral Attorney: Sure Gennaro, leave the poor little children behind to face a Tyrannosaurus-Rex... ALONE!!!
• The Can Kicked Him: In the film.
• Composite Character: Of the novel version and Ed Regis (from the novel).
• Death by Adaptation
• Dirty Coward

Lex and Tim Murphy (Arianna Richards and Joseph Mazzello)

• Badass Adorable
• Chekhov's Hobby: Lex's computer hacking.
• Hero Worshipper: Tim is a huge fan of Dr. Grant.
• Insistent Terminology: "I prefer to be called a 'hacker.'"
• Kid Appeal Character
• The Load: Moreso Tim; Lex does extremely dumb things, but she has her useful and smart moments too (in the film anyway). Both the film version of Tim and the book version of Lex can be forgiven as they are young kids.
• Playful Hacker: Lex
• Precocious Crush: Lex has one on Dr. Grant.
• Tomboy: The book version of Lex is a huge baseball fan. The movie version of Lex is older and more nerdy but she still wears a baseball cap and seems pretty capable at things like climbing so she might count to a lesser degree.

Dennis Nedry (Wayne Knight)

• Asshole Victim
• Bad Liar
• Blind Without 'Em
• Dropped Glasses
• Fat Slob
• Genre Savvy / Crazy-Prepared: Apparently Nedry was smart enough with his computer hacking skills to anticipate the possibility that his bosses would attempt to hack into his computer and created a defense on his computer where he'd have a portrait of himself saying "you didn't say the magic word" while wagging his finger, going by what happened when they did attempt to do so after he took the security system offline.
• Jerkass
• Just Desserts
• Karmic Death
• The Mole
• Significant Anagram: "Nedry" – "nerdy."
  • His full name: "Dennis Nedry" = "Nerdy Sinned".
• Smug Snake
• Villainous Glutton

Dr. Henry Wu (B.D. Wong)

• Asian and Nerdy
• Demoted to Extra: He has considerably more 'screen time' in the book.
• Spared by the Adaptation

Dr. Sarah Harding (Julianne Moore)

• Badass Damsel
• Heroes Want Redheads
• Hot Scientist
• Informed Ability
• Fiery Redhead
• Stupid Good: Heal the baby Tyrannosaur, what could possibly go wrong?
• Too Dumb to Live

Nick Van Owen (Vince Vaughn)

• Badass
• Badass Pacifist
• The Casanova
• Chivalrous Pervert: The reason he joined a Mickey Mouse organization like "Green Peace", the women!
• Stupid Good: He's the guy who thought it'd be a good idea to bring a baby T-Rex back to base.
• What Happened to the Mouse?

Eddie Carr (Richard Schiff)

• Composite Character: Of the book version of Eddie and "Doc" Thorne.
• Gadgeteer Genius
• Heroic Sacrifice
• Only Sane Man
• Punny Name/ Stealth Pun: His last name is Carr. He's the mechanic for the entire operation, having built some of those massive trailers and a few of the jeeps himself. Think about it.
• Sacrificial Lion

Kelly Malcolm (Vanessa Lee Chester)

• Action Girl: Thanks to her Chekhov's Hobby, see below.
• Chekhov's Hobby: Her Gymnastic skills, believe it or not.
• Composite Character: Of Kelly Curtis and "Arby" Benton from the second book.
• Little Stowaway
• Tomboy: She's got shades of it.

Peter Ludlow (Arliss Howard)

• Asshole Victim
• Corrupt Corporate Executive
• Jerkass
• Karmic Death: Eaten by the very animals he'd been mistreating, don't get much more karmic than that.
• Manipulative Bastard

Roland Tembo (Pete Postlethwaite)

• Anti-Villain: Type IV, Rolands' not really an evil man at all, just a little misguided in certain areas.
• Badass
• Bald of Awesome
• Buffy Speak: During the hunting scene.
  "Pachy...Pachyl... Oh, hell. The one with the bald spot. Friar Tuck."
• Great White Hunter
• Heel Face Turn
• Heroic BSOD
• Nice Hat
• The Only One Allowed to Defeat You
• Only Sane Man

Ajay Sidhu (Harvey Jason)

• Anti-Villain: Type IV, like his boss (and friend) Roland.
• Dropped a Bridge on Him
• The Lancer: To Roland Tembo.
• Only Sane Man: During the scene where he and the rest of the InGen hunting party are running from one of the T-Rexes and they come to a plain of long grass, and everyone runs into the long grass despite his protests to not do so.
  • Too Dumb to Live: He follows them into the long grass while doing so...

Dieter Stark (Peter Stormare)

• Asshole Victim
• Jerkass
• The Rival: to Nick, although it's not explored any further after their initial confrontation.
• Too Dumb to Live

Paul Kirby (William H. Macy)

• Bumbling Dad: He stutters quite a bit, and he can be a little clumsy sometimes.
• Butt Monkey
• Disney Death
• First Father Wins: Took Amanda a long while before she realized that she should stick with Paul.
• Papa Wolf
• Took a Level in Badass

Amanda Kirby (Tea Leoni)

• Dumb Blonde: Not in a ditzy way, more like a Too Dumb to Live kinda way.
• Hot Mom
• Mama Bear
• Hate Sink: Thanks to her amazing ability to always make Dr. Grant's job more difficult. Includeing her selfishness, stubbornness, and an inexhaustible ability to make bad decisions throughout the film. She does get better near the end though.
• Screaming Woman: Boy is she ever.
• Too Dumb to Live

Eric Kirby (Trevor Morgan)

• Action Survivor
• Adorably Precocious Child
• Shorter Means Smarter
• Wise Beyond Their Years: Very practical for a kid his age, understandable considering he had to dodge dinos for over eight weeks.

Billy Brennan (Alessandro Nivola)

• Alliterative Name
• Chekhov's Hobby
• Disney Death
• Heroic Sacrifice: Subverted, he manages to survive his encounter with the blood-thursty dinos.
• Reckless Sidekick: To Dr. Grant.
• Well-Intentioned Extremist

Udesky (Michael Jeter)

• Butt Monkey
• Killed Off for Real

Cooper (John Diehl)

• Deadpan Snarker
• Killed Off for Real
• Not So Stoic

Nash (Bruce A. Young)

• Killed Off for Real