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"Back off, man; I'm a scientist."
- Anti-Hero: Snarky, arrogant, conceited, womanizing and sometimes a real jerk, but still a good man. He softens up quite a bit in Ghostbusters II.
- Becoming the Mask: Particularly in the first movie, there's something to this. He puts on an ironic persona of being a know-it-all big shot, but by the end, he's forced to back up his braggart ways and become a real hero.
- Berserk Button: The novelization of the first film reveals one; don't talk bad about his family. When a magazine does an investigative story on Pete's past and his father's history as a carnival impresario, Peter deliberately lets a ghost roam free in their offices until they agree to publish a retraction.
- Brilliant but Lazy: He is a fairly smart guy. If only he cared enough to do anything with his smarts. He has PhD's in both psychology and parapsychology, but uses mostly the psychology one to help him get together with girls.
- Bunny-Ears Lawyer:
Dana: You know, you don't act like a scientist.
Peter: They're usually pretty stiff.
Dana: You're more like a game show host.
- Con Man: Venkman is the least sincere of the four, exploiting the field of "parapsychology" to swindle universities, push nonsense papers all day, flirt with his research subjects, and basically get paid for doing nothing.
- The Casanova: If all those phone messages he gets in the game means anything. He seems to have become quite popular with the ladies. Despite this, though...
- Casanova Wannabe: He is still not capable of winning over everyone. At least it seems that way till they start going out with him...
- Chivalrous Pervert: He's interested in dating his female students, however, he refuses to take advantage of Dana possessed by Zuul.
- Cloud Cuckoolanders Minder: Egon apparently tried self-trepanation, but Peter stopped him.
- Deadpan Snarker: Definitely.
"You're right; no human being would stack books like this."
- The Face: Peter is the group's ambassador and generally does the talking.
- Flat Earth Atheist: At the start of the second film, even after dealing with real ghosts and an extradimensional deity, he still thinks the only reason a person would write a book about the end of the world would be to make a quick buck from gullible readers. Possibly justified by his line to Dana in the first film saying most people who say they see ghosts are nutjobs.
- And with his producer after an episode of his show:
Producer: (famous paranormalists refuse to appear on Venkman's show) "They think you're a fraud."
Venkman: "I am a fraud."
- Freudian Excuse: Having an absent, sleazy conman for a father certainly explains a fair amount of his personality.
- Freudian Trio: Ego
- Good Is Not Nice: He's a sarcastic wise-ass, despite being one of the series' lead heroes.
- Guile Hero: Can trick and bluff his way out of any pinch.
- The Hero: It's a subtle thing, but if anyone in this group fill this role, it's Peter. The other members will generally do more of the heavy lifting, but Peter is higher profile and speaks for the group.
- Jerk with a Heart of Gold: Though you have to look really hard to find the heart of gold in the first film. It's much more evident in Ghostbusters II, and he is generally much kinder in the cartoon series as well. In the video game, he seems to have lost some of that heart and the Jerk seems to have resurfaced. A funny jerk, but a Jerk none the less.
- The Kirk: An acerbic version. He nets all of the chicks and saves the day by breaking established rules (like EPA codes) and rebelling against authority.
- Knight in Sour Armor: Despite his actions to the contrary, Peter is in fact more likely to do the right thing than not. He has his moments, when he can get away with it. He is a Jerkass for sure, but never would he step down from helping someone who really needs it. Notably, in the first film, he's willing to go back to jail (and quietly) if it turns out they're wrong about Gozer.
- The Leader: Not so much a leader as designated spokesperson or front man. Peter is the ladies' man of the group, and while he's less normal than Winston, he's more capable of relating to other people than either Ray or Egon. In the cartoon series, he is also the one who generally decides whether or not the Ghostbusters will take a given job.
- Lovable Coward: For all his bravado, he's not exactly a brave guy; he'll step up to the plate if necessary, but very reluctantly, and will happily allow someone else to go first.
- The Millstone: Every problem the 'Busters have to deal with in the original film is caused by him. It's his freewheeling attitude that gets them kicked out of Columbia, his overt come-ons with Dana nearly cost them their first customer, and his standoffishness with Peck is what gets the containment grid shut down. Every one of these incidents is subverted because Venkman's cleverness and quick tongue always end up fixing the problems he causes.
- Nice Job Breaking It, Hero: Perhaps if he hadn't antagonized Peck so much and just showed him around, Peck wouldn't have gone and shut down the power grid.
- Obfuscating Stupidity: He is a very intelligent man, but he comes off more like a Casanova Wannabe. He obviously doesn't have any real interest in parapsychology or psychology. Despite all this, the very fact that he was able to become a scientist in those fields speaks volumes of what he is capable of when he works at it.
- Papa Wolf: Even though Oscar is not his child, he did his part to protect him from Vigo.
- Pet the Dog: At the start of the film, he's got very few good qualities but Dana sort of becomes a Morality Pet of his. He does become more heroic at the end of the film, and for all his sleaze, he is so not going to sleep with a woman under the influence of a major specter.
- Phony Phony Psychic: A charlatan in the field of telepathy (later 'promoted' to a cable TV host on a paranormal talk show) finds himself getting dragged along on a hunt for real ghosts.
- Pre Ass Kicking One Liner
"All right—this chick is toast!"
"Let's show this prehistoric bitch how we do things downtown!"
"Viggy, Viggy, Viggy. You have been a bad monkey!"
- Punch Clock Hero: He's Only in It for the Money and treats what he does as a the paying job it is, not some selfless mission or higher calling for the good of mankind.
- The Slacker: He certainly tries to be this. In the first movie, he only goes to help Dana because he wanted to get into a relationship with her. Also in the game, he was busy getting coffee while the Rookie and Ray are being attacked by Stay Puft and his minions. He's basically reluctant to do anything unless some kind of personal gain is involved.
- The Trickster & Token Evil Teammate: He is purposely contrary to people, inciting them to become aggravated with him. Peter seems to not care much for their feelings though and goads them on. He is willing to mock or patronize even people in places of authority, whereas Ray and Egon would be more-easily cowed and cautious. Though he usually shows more discretion with these people than to the average Joe. May be unrelated, but perhaps his attitude to higher authority improved after what happened with Peck.
- Trust Me, I'm an X: "Back off, man. I'm a scientist."
"I collect spores, molds, and fungus."
- Adorkable: How could Janine resist such a handsome, shy, soft-spoken genius with No Social Skills?
- Ambiguously Jewish: Judging by his last name. Harold Ramis, the actor that plays him, was Jewish, adding credence to the idea that Egon is supposed to be Jewish.
- Admiring the Abomination: Admires some of Ivo Shandor's work in the 2009 game, but is also quick to admit that he was also very evil.
Ray: "Stick to the Light Side.'''
Egon: "It's hard."
- Badass Bookworm: Not necessarily a Trope Codifier, but definitely one of the originals.
- Beware the Nice Ones: Egon completely flips his shit when Peck accuses the Ghostbusters of causing the containment breach, something that Peck caused.
- Cloud Cuckoolander: Not to the extent as Ray, but still.
- Collector of the Strange: Molds, fungus and spores, mostly. He may even possibly find the scent of them attractive.
- Creepy Child: This is implied in the second movie. While Ray and Egon are in baby Oscar's room, Egon reveals he never had any toys when he was a child. Ray is curious and asks if he really never had any toys, and Egon responds by saying he had half a Slinky once (he straightened it).
- The novelization went further, listing a number of strange experiments young Egon enacted which got him ostracized by his peers. "I think you've been spending too much time with Egon" was a common sentiment among his friends' parents.
- For Science!: Let's just say he can get rather disturbing with how far he'll go for the sake of science. Tricking people into thinking they're going to counseling when, in fact, he just wanted to test if slowly increasing the heat would alter their moods. Wanting to conduct a gynecological examination on Dana while investigating the baby carriage incident. Then there was that drill thing...
That would've worked if you hadn't stopped me!
- Deadpan Snarker: Egon has his dry comedy moments such as the musical ectoplasm.
- Expy: The Medic from Team Fortress 2 is a pretty clear Egon expy, from his similar uniform, Awesome Backpack, suspiciously similar goggles, round glasses, Ambiguously Jewish note Mad Scientist tendencies... Medic even fights ghosts each year around Halloween!
- Freudian Trio: Superego
- Gadgeteer Genius: He makes all of the equipment the Ghostbusters use. In fact, he works on so many gadgets, the other characters asked him how he can produce so much. He tells them he's been doing an experiment where he sleeps for an average of fourteen minutes a day.
- Heroic Comedic Sociopath: He seems rather detached from other peoples' feelings, and occasionally misleads or disturbs people for his own amusement, but his ultimate goal, apparently, is for the common good.
- Hot Scientist / Hot Teacher: At least, Janine, Kylie, and his college students think so. He's not entirely happy about it.
"I think [my students are] more interested in my epididymis."
- The Leader: In the cartoon, he trades off with Peter in this role. While Peter generally decides if they will take a job, once there the group usually defers to Egon's expertise.
- Mad Scientist: Close to a Trope Codifier, but a heroic version (though he still can get a bit disturbing). Egon is primarily a theoretician and field strategist who mainly wants to study the things which the Ghostbusters encounter, rather than destroy them.
- Morally Ambiguous Doctorate: He seems to be mildly sociopathic, as he routinely puts people in unpleasant situations for scientific purposes and shamelessly lies and jerks people around just to see what kind of reaction he gets. The best example of this is in the beginning of the sequel when he tests the effect of human emotion on the environment by ruining a couple's marriage and giving a little girl a puppy only to take it away again.
- Nightmare Fuel Station Attendant: He is already shown to be a bit odd, but nothing too serious. Just a bit of a nerd. The whole "mold, fungus and spore" thing were certainly strange but nothing horrifying. Then we get a glimpse into his life before the Ghostbusters—he used to be a coroner. This isn't too bad, though. Then he says that he does it as a hobby now. Oooookay...
- Nice Guy: Although he's a mad scientist, whose methods are questionable, Spengler has a soft side only seen by his friends and Janine.
- Noodle Incident: Egon tried to drill a hole in his head at some point. All we know is Peter stopped him before he could do it.
- Not So Stoic:
- The scene where he flips out when Peck accuses the Ghostbusters of causing a massive explosion that Peck himself caused.
- In the video game, as he and the Rookie are going up the elevator, suddenly they are treated to a phantom image of the Spider Witch and one of her victims. Egon is quite shaken at seeing this. In fact, he seems quite nervous throughout the Spider Witch's level. He also angrily tears up a sign prohibiting the Ghostbusters from entering the hotel at the beginning of the level.
- His uncharacteristic edginess may be explained by to his own in-game notes: Egon admits he is an arachnophobic.
- His reaction once to getting snarked at by a serious Jerkass in the IDW comic is a scream and an attempt to throttle him!
- Oblivious to Love: How the animated series and IDW comics interpret his relationship with Janine.
- Shout-Out/ Named After Somebody Famous: Named for Egon Kisch (a famous Czechoslovakian journalist who, among other things, helped popularize the Golem of Prague and claimed to be descended from its creator, Rabbi Loew) and German philosopher Oswald Spengler.
- In turn, John Egbert nicknames a cat in Homestuck after Egon, albeit with a cat-related pun (Dr. Meowgon Spengler).
- The Smart Guy: While Ray is also intelligent, Egon is The Strategist of the group.
- Specs of Awesome: He's the biggest nerd in an 80s sci-fi film — what did you expect?
- The Spock: Pure intellect — they didn't dub him "The Head" for nothing.
- Sweet Tooth / Genius Sweet Tooth: Describes New York City's telekinetic energy in terms of Twinkies, using his own as a visual aid. Accepts a Nestle Crunch bar as a reward.
- Theme Music Power-Up: In the cartoon series, most of these occur either while Egon is formulating strategy or when he does something that helps the rest of the group succeed.
- When He Smiles: Sometimes when he does smile it comes across as ominous or threatening. However when he does it for genuine reasons it's nice to see, such as when he's assuring Dana that he won't use anything to hurt Oscar during a routine Check-up.
Raymond "Ray" Stantz (Dan Aykroyd)
"Well, this is great. If the ionization-rate is constant for all ectoplasmic entities, we can really bust some heads... in a spiritual sense, of course."
- Adorkable: He's sweet-natured, nerdy, and a bit of a goof-ball.
- Admiring the Abomination: He gets boyishly excited by a lot of the weird, gross and terrifying stuff they encounter.
- Beware the Nice Ones: Ray is honestly the nicest guy you will ever meet, but if you mess with any of his friends, whether you be human or ghost, he will not take it lightly.
- He also hates it when kids are being threatened.
) You want a baby? Go knock up some willing hellhound
. Otherwise I am giving you to the count of three to march back in that painting!
- Butt Monkey: If he's not being manipulated or slapped around by Peter, he's getting attacked/possessed by one demonic entity or another.
- The Cameo: In Casper. Generally considered a non-canon appearance by fans due to how cowardly it makes Ray look.
- Cloud Cuckoolander: Has this in spades. He believes that an undersea mass sponge migration he once witnessed was paranormal despite the fact that the sponges barely moved a foot.
- Demonic Possession: This has happened to him far more than any other character in the series. It's to the point where the other characters lampshade it every time he becomes possessed or slimed.
- Ditzy Genius: For the guy who was behind the creation of the proton packs and the Ecto-1, he sure doesn't have a lot in the common sense department.
- Drives Like Crazy: During the They're Back montage in the second film, Peter has a look of panic as Ray is driving the Ecto-1A to a new case.
- However, in the first movie and in other points during Ghostbusters 2, Ray is shown to be a perfectly competent driver. Peter looks worried because that short clip is from a deleted scene after Ray looks into the painting of Vigo's eyes. In the cut scene, he drove Ecto-1A like crazy through traffic... because he was possessed by Vigo and aiming to commit murder-suicide. He's snapped out of it by Winston punching him in the face, slams on the brakes before Ecto can run head-on into a tree, and explains that he just felt an urge to drive into said tree and end it all. Peter warns Egon to keep an eye on Ray and not even let him shave. The comics featuring The Real Ghostbusters characters in Ghostbusters 2 included the scene.
- Dysfunctional Family: The novelization for the first movie paints his family out as one. His parents disappeared and are presumed dead, and his brother and sister refuse to talk to him or each other for what we can assume are very petty reasons.
- The Engineer: While Egon is typically the group's strategist during missions, Ray is the mechanic and practical inventor. He built the proton packs and the stuff on the Ectomobile, and also designs something called a "Ghost Bomb" in the cartoon series.
- For Science!: Far more mild than Egon, though.
- Freudian Trio: Id
- Good Smoking, Evil Smoking: Good on Ray's part. He's seen with a cigarette in almost every scene in the movies.
- The Heart: He's considered this by the rest of the Ghostbusting team.
- Hollywood Atheist: An interesting case. In a short scene toward the end of the first movie, Ray and Winston are alone in Ecto-1, and Winston asks if Ray believes in God. His response is a brief "Never met him." It's rather strange to hear this coming from someone who sees strange spiritual events every day. Ray goes on to quote the Book of Revelations regarding the End of Days, showing that he has some Biblical knowledge. So he may not be an atheist per se—he might be an agnostic.
- In the 2009 game he mentions he spent some time in a seminary. Whether this was because he wanted to go or if it had something to do with the Stantzes being a top-notch Dysfunctional Family isn't elaborated on, but it's more or less confirmed that he was, at one point in his life, religious.
- Hot-Blooded: Out of everyone, he is the most passionate when it comes to ghosts and the supernatural, and is the first one to rush headfirst into the unknown.
- Leeroy Jenkins: "GET HER!"
- Leading to a hilarious brick joke. "Go GET HER...Ray!"
- The Lancer: He's this to Peter, making it an interesting aversion of the traditional roles; Ray is the idealistic, innocent one whereas Peter is the snarkier, self-centered one.
- Last Name Basis: Unique among the main characters in that he generally refers to everyone except Winston by their last name. This seems more personal preference than reflective of his feelings towards them, however.
- ... Until the second movie, when he starts nicknaming everyone instead.
- Mad Scientist: A heroic example.
- Man Child: His sheer delight at sliding down the fire pole (and at the rest of the fire station) in the first movie would put him here even if nothing else would. In general, however, where Peter is dry and cynical and Egon is clinically rational, Ray tends to have a lot of childlike enthusiasm for what they do.
- In the cartoon, he sleeps with a Stay-Puft plushie, and the team picks him to stand in for a six-year-old child to help catch the Boogeyman. He's also overjoyed to see a plush dog similar to one he owned as a child used as a prop and immediately rushes over to pick it up and cuddle with it.
- In the second movie, when he fails to possess Oscar, Vigo decides Ray's just as good. The fact that Vigo specifically requested a child to live through speaks volumes of Ray's man-child tendencies.
- The McCoy: Though more agreeable than his partners, he does jeopardize their safety with his headstrong personality.
- Nice Guy: He's a decent person who genuinely wants to help others by using the technology the Ghostbusters create to study the supernatural and defend the city.
- Nice Job Breaking It, Hero: He unwittingly chose the form of the Destructor.
- Nightmare Fetishist: The dream sequence he had may suggest how deep his nightmare fetish goes.
- Spell My Name with an "S": Stantz in the movies and video game, Stanz in The Real Ghostbusters. It's generally accepted that the cartoon misspelled Ray's surname, as opposed to how fans argue over whether Winston's is Zeddemore or Zeddmore.
- Vitriolic Best Buds: With Peter, who relentlessly teases and takes advantage of him, even going so far as manipulating him into mortgaging his parents' house. In spite of that, it's obvious that they care about one another, as evident in their final goodbye to each other when confronting Gozer at the end of the first movie.
"If there's a steady paycheck in it, I'll believe anything you say."
- All There in the Manual: It's never really explained where he came from in the movies proper, but according to Dan Aykroyd he's the ghost of John Belushi.
- Big Eater: When first encountered, he's scoffing his way through a room-service trolley.
- Blob Monster: Spherical, and made of slime.
- Creator Cameo: His voice is provided by series director Ivan Reitman.
- Fat and Skinny: The Fat to Louis' Skinny.
- Harmless Villain: The Ghostbusters caused MUCH more havoc than he did, and he never actually hurt anybody.
- Heel-Face Turn: He helps Louis (and the other Ghostbusters to an extent) out near the end of the second movie.
- Hidden Depths: When Ray hooks him up with a text-to-speech computer in the cartoon, he's quite eloquent. He also solves a math problem Egon's been stuck on for awhile (although he misplaces the decimal point).
- Lawyer-Friendly Cameo: Shows up in Homestuck as the icon on protagonist John Egbert's t-shirt, but rendered in Super-Deformed anime style, and only referred to as "Slime Ghost". However, John makes blatant references to Ghostbusters II, and the comic doesn't pretend it isn't Slimer.
- Mascot: Particularly in the cartoon series.
- Meaningful Name: Deliberately. In the animated series, Ray gave him the name "just to annoy Peter."
- Non-Human Sidekick: Most likely — see below.
- Our Ghosts Are Different: The first ghost seen not to be the spirit of a deceased human being.
- Team Pet: In the game and other media.
Janine Melnitz (Annie Potts)
"I've quit better jobs than this!" *answers phone* "Ghostbusters, whaddya want!?"
The Rookie (model Ryan French)
Appeared as the player character in the 2009 video game, served as the team's prototype weapons tester (i.e. field-testing the weapons and upgrades that could explode at any moment and emit an alarmingly high amount of radiation and exotic particles regardless).
- Adorkable: One of his most remarkable traits is his clumsiness. He fell off a roof, fell down a trap and accidentally zapped a tree with his pack.
- Butt Monkey: He is made to do quite a few dangerous tasks—touching an inter-dimensional portal that could lead anywhere, go it alone in the huge cemetery that wasn't there yesterday, get trapped alone in a waterlogged hotel floor with malevolent candelabras... this dude puts up with a lot.
- Canon Name: Given in the IDW comics, may only be canon to said comics (so far).
- Realistic: Bryan Welsh
- Stylized: Chad Fuller (Male)/Maddie Collins (Female)
- Collector of the Strange: Since the player can collect some special items, you can turn the Rookie into this. One of the items he can collect is a possessed toilet.
- Creator Cameo: In a manner of speaking. In the PS3 version of the game, associate producer Ryan French served as the base for the Rookie.
- Funny Background Event: When he accidentally blasted a tree with his proton pack, and when he was left hanging with a high five. Also he goes plummeting down a trapdoor.
- Heroic Mime: Never says a word aside the occasional scream or gasp.
- Mauve Shirt: His name tag just says "Rookie", since it's more convenient. Peter doesn't want to remember his name so they don't get attached, since he's testing out prototype equipment...
- Put on a Bus: After the events of the game, he leaves New York in order to expand the franchise.
- Naïve Newcomer: His name is very accurate.
- Nice Job Breaking It, Hero: His attempt to recapture Slimer at the beginning of the game leads to the containment vault accidentally being damaged and several ghosts being unleashed.
- No Name Given: Enforced; the other Busters don't want to feel too attached to him due to the High Turnover Rate of the team's other rookies.
- Sixth Ranger: Joining a previously established team.
- The Voiceless: See Heroic Mime, the Rookie is mute aside from gasping or screaming once or twice. Given a speaking role in the comics after he's sent to Chicago.
"Forget it, Venkman. You had your chance to cooperate, but you though it would be more fun to insult me. Well, now it's my turn, wiseass."
A representative of the Environmental Protection Agency. He's highly skeptical and cynical. Especially toward Peter.
Eleanor Twitty AKA Gray Lady (Ruth Oliver)
- Ancient Keeper: She's spent decades keeping the Gozerian Codex in her last resting place.
- Anti-Villain: Type II.
- Ascended Extra: Originally she was merely just the first ghost the Busters came across, then after scaring them off she wasn't mentioned again. In the video game, she was given an entire level where we were introduced to who she was and shown her deep connection to the event in the game as a node in the spectral circuit flow.
- Beware the Quiet Ones: Despite seeming to be just a normal ghost, she ends up having the power to control the entire library, as well as ghosts that are not known to work together. Hurt her and you'll regret it, even if it takes nearly a century.
- The Chessmaster: In the game, she purposely lured the Ghostbusters to her library by taking control of some ghosts and making them cause a ruckus. All this to get them to go after her murderer/ex-boyfriend so as to finally get her revenge.
- Finger On Lips: Shushes them when they disturb her reading. Disturb her reading again and she goes ape.
- Fog Feet: It seems to be the main way one tracks her.
- One-Winged Angel: Her "angry form."
- Sitcom Arch-Nemesis: To Ray; he really wanted to get her after scaring him.
- Scary Librarian: Especially in her angry mode.
- Snub by Omission: Her initial response to the Ghostbusters is to ignore them.
- Spooky Silent Library: Her chosen domain, obviously.
- Revenge Against Men: Her EX-boyfriend, not the Ghostbusters.
- Unfinished Business: Subverted. After thinking they had helped her pass on by taking her book, she suddenly reappears and laughs maniacally as she transforms into her angry mode.
- Voluntary Shapeshifting: She has a disturbing tendency to shift between a quiet plain librarian to a raging grotesque ghoul.
- Woman Scorned: Oh yes...
- Woobie, Destroyer of Worlds: Her boyfriend used her to get at her rare book collection. When this is discovered, she dumps him and revokes his pass to her collection. He then kills her, trapping her in the library she tried to protect. It is soon shown, despite her circumstances, she isn't going to mope about. Instead she'll spend her afterlife plotting the downfall of her ex-boyfriend. She succeeds, with the help of the Ghostbusters.
Gozer the Gozerian (humanoid form: Slavita Jovan) (humanoid form: voiced by Paddi Edwards)
"Are you a god?....Then DIE!!!"
- Attack of the 50-Foot Whatever: His Stay Puft form.
- Agony Beam: Uses this on the Ghostbusters after they told it they were not gods.
- Attack of the 50-Foot Whatever: Went from a giant sloar to a giant marshmallow man.
- Big Bad: Of the first movie in his Stay Puft form.
- Combat Stilettos: In its humanoid form.
- Eldritch Abomination: A non-cephalopod variety.
- '80s Hair: A mean flat-top.
- Evil Sounds Deep: Gozer speaks with a raspy, deep voice.
- A Form You Are Comfortable With: Apparently Gozer's trademark. When it arrives to cause an apocalypse, it forces the denizens of the world its about to destroy to choose the form it will end them with. Ray chooses a marshmallow man, which is the least threatening of all the transformations.
- Hoist by His Own Petard: The door Gozer used to enter man's world is also the thing that pushed it back out.
- Humanoid Abomination: At least Gozer took the form of one. Its true form has never been revealed.
- I Have Many Names: Also known as "Gozer the Traveler," "the Destructor" and "Volguus Zildrohar."
- The Not So Harmless Punishment: Ray tries to think of a form for Gozer that couldn't possibly hurt anyone. Guess what?
- No Biological Sex: Gozer only takes on forms with characteristics of other genders. In truth, it has none of its own.
- Not Quite Dead: Returns as the Stay Puft Marshmallow Man in the 2009 game, but in this game is fried to a crisp.
- Omnicidal Maniac: Seems to be Gozer's main goal. It kills everyone, its summoners and all else in its way.
- Otherworldly And Sexually Ambiguous: Gozer the Gozerian, the Sumerian god, in the final confrontation. The boys are surprised that s/he's a "girl", but clearly s/he is both.
Ray: It's a girl.
Egon: It's Gozer.
Winston: I thought Gozer was a man.
Egon: It's whatever it wants to be.
Peter: Well, whatever it is, it's gotta get by us.
- Person of Mass Destruction: Gozer has come to be known for its tendency to destroy all that is in its path.
- Physical God: And anyone who isn't can PERISH!
- Red Eyes, Take Warning
- Sissy Villain: Chooses to appear in an androgynous form leaning towards feminine.
- Voluntary Shapeshifting: From a woman covered in bubbles to a giant marshmallow man. Truly, Gozer doesn't seem to care what form it takes.
Prince Vigo the Carpathian (portrayed by Wilhelm von Homburg, voiced by Max von Sydow)
- Big Bad: Of the second movie.
- Black Eyes of Crazy: When possessing Ray.
- Blob Monster: He controls the living River of Slime beneath New York.
- Body Surf: One of his more frightening powers.
- Card-Carrying Villain
- The Dreaded
- Emotion Eater: He feeds on human negative energy.
- Evil Overlord: "On a mountain of skulls in a castle of pain, I sat on a throne of blood."
- The Evil Prince
- Evil Sorcerer: In his backstory.
- Expy: Possibly of Vlad the Impaler aka Count Dracula.
- A God Am I
- Harmless Villain / Villain Decay: In the game, he's reduced to nothing more than his painting, unable to do much of anything aside from talk and make the player feel uncomfortable. To add insult to injury, said painting is owned by the very people who beat him: the Ghostbusters.
- Hoist by His Own Petard: A version of Vigo's empathic slime empowered with positive emotions is what ultimately does him in.
- Horned Humanoid: Grows two stumpy blood-colored horns after being sucked back into the painting during the final confrontation.
- I Have Many Names / Names to Run Away From Really Fast: Also known as Vigo the Cruel, Vigo the Torturer, Vigo the Despised and Vigo the Unholy.
Peter: Wasn't he also Vigo the Butch?
- Kubrick Stare
- Obviously Evil
- Rasputinian Death:
Ray: He didn't die of old age, either. He was poisoned, stabbed, shot, hung, stretched, disemboweled, drawn and quartered... Just before his head died, his last words were "Death is but a door, time is but a window: I'll be back."
- Sealed Evil In A Painting: When first encountered.
- Sorcerous Overlord: He was this in past life.
- Spooky Painting: Dana comments that the painting gives her chills, even before the paranormal shenanigans begin.
- Ascended Extra
- Badass Grandpa: He captured an Eldritch Abomination from another world. Granted, it was only a baby; still impressive. He was the head of the cult of Gozer, and he made himself a god!
- Big Bad: Of the video game.
- Body Surf: For most of the game, unknown to the Ghostbusters, Ivo has been possessing the mayor of New York since before the game even started.
- Deadly Doctor: He performed quite a few unnecessary surgeries in his time.
- Even Bad Men Love Their Mamas: He kept a painting of his mother in his church to Gozer. Despite most everything else in the church being run-down, his mother's painting is the only thing that is still pristine. Even after being underwater for who knows how long.
- Evil Old Folks: He is a cult leader who was involved with quite a few bloody sacrifices to Gozer as well as making buildings that would bring about the end of the world. Apparently he thinks mankind is too sick to survive.
- Evil Plan: To wipe out the bastard humans, of course. Building Dana's apartment, storing energy and everything else works toward this goal.
- My Death Is Just the Beginning: He and his cult made sure this would happen even after their deaths. Also they had an alternate plan in case Gozer had issues the first time, and already had it set into motion.
- A God Am I: Ivo was upset that Gozer was beaten not once, but twice. So he decided he would take the energy he was originally going to give to Gozer and empower himself with it. He goes into it with the big speeches and everything.
- Ghostly Goals: Definitely Type B.
- Humans Are Bastards: Apparently this was his reason for trying to bring about the end of the world. After WW1, he felt mankind was far too sick to survive. Kind of ironic considering what ''he'' had done to his fellow human beings. Even before he started to bring about the end to life.
- Mad Doctor: See below.
- Mad Scientist: An evil one to combat the Ghostbusters two good ones.
- Malevolent Architecture: Dana's apartment building which Ivo designed specifically for causing horrors to come upon the world. Ivo also worked on the Sedgwick Hotel, Library, the Natural History Museum and his own personal island.
- Misanthrope Supreme: He deeply hates all human beings, considering them vermin and "too sick to survive."
Spider Witch (Erin Gray)
- All Webbed Up: Kind of goes without saying. Her entire realm is covered in spider webs and hanging human bodies, and the boss arena in the 360 and PS3 versions of the game is all of this.
- Animal Motifs: Spiders, obviously. Even in life, her spider obsession seemed to be a major characteristic of herself.
- Ascend to a Higher Plane of Existence: Possibly. We are not too sure if she was human or not. If she was human then, after her death, she became a demigod-level spirit being.
- Blood Lust: Her suite, after she disappeared, was found to be painted in blood. Her victims hung on the ceiling drained of said blood, after she dragged them around to smear it on the floor.
- The Collector: She collects men's dead bodies and their souls, making them her eternal slaves.
- Eerie Pale-Skinned Brunette: As if being a spider-obsessed Black Widow wasn't enough for her, she had to be this too.
- Everyone Calls Her Spider Witch: She was a professional Black Widow who brutally murdered her victims not for money but for a twisted hidden reason. She became known as the Spider Witch.
- Fate Worse Than Death: Her minions, not herself. It is heavily implied the spider minions are the souls of the men she murdered. Now dead, they are forced to serve her as spiders for all time.
- Foreshadowing: Her presence in the Sedgewick Hotel was hinted at early in the game. On one of the doors in the first level, you can see a ghost spider with the PKE meter. This door leads to the Spider Witch's old suite.
- Giant Spider: After her death, if she was ever even alive, she was turned into a giant spider woman.
- Healing Factor: While the Busters battle her, she can feed off...something to heal herself from damage. Depending on whether you can find her or not will define whether your battle with her will be fast or long.
- Humanoid Abomination: Besides her spider humanoid form, she was this in life. She fashioned her suite to her bizarre tastes. Furniture was all heaped in a corner chewed up, and she painted blood everywhere in the room. Let's not forget her hanging men collection.
- Knife Nut: She has some major Blood Lust and enjoys carrying a knife when taking her "husbands" to her suite. You put the picture together.
- Lady in Red: Mostly red, anyway.
- Mix-and-Match Critters: In her ghost form, she became part woman and part spider.
- No Name Given: Despite the crimes she committed, the authorities never discovered her name, not even a false one.
- Professional Killer: She worked for Shandor and is implied to have killed many men for Shandor's cult. Not really paid to do this, she just really likes to kill.
- Right-Hand Hottie: She loyally serves Ivo Shandor as a guardian over the Sedgewick's mandala node in her death. In life, she had killed many men for a reason only she and Shandor know.
- Spiders Are Scary: That's basically her levels entire theme.
- Spider People
- Urban Legend: She is this to the Sedgewick Hotel staff. They were terrified enough to keep her room locked...till it was opened for remodeling.
- The Vamp: She would seduce unknowing men so she could paint her room with their blood and possibly make them her eternal minions.
Azetlor AKA Edmund Hoover
- Ascend to a Higher Plane of Existence: Before being executed, he told everyone that he was going to be reborn as Azetlor. He was.
- Badass Bookworm: He loves books a lot. To the point he will kill for them. Though we don't know what he looked like in life, Ray suggested that he was a sniveling little bookworm.
- The Dog Bites Back: He really shouldn't have killed Eleanor Twitty.
- Co-Dragons: He shares this with the Chairman.
- The Collector: He collects the dead bodies of his victims, much like the Spider Witch. He also collects books.
- Eldritch Abomination: He became a mass of Black Slime and broken furniture with a helmet after his death.
- I Have Many Names: Edmund Hoover, Edmund Hoover the Collector, The Library Serial Killer, Azetlor, Keeper of Knowledge, Azetlor the Finder, Azetlor the Collector, Azetlor the Returner, Azetlor the Lost, Azetlor the Destroyer, and Azetlor the Bookworm. Basically the opposite of the Spider Witch.
- Kick the Dog: When he seduced Eleanor Twitty to get at her library's rare book collection. When she figured out what he was doing, he murdered her and damned her to an eternity in her beloved library.
- Meaningful Rename: He changed his name from Edmund Hoover to Azetlor. Azetlor was a Sumerian demigod that ruled over the lost. Originally he collected all that was lost, but grew greedy and began to collect what he shouldn't. Much like what Hoover did with the librarians he killed and his books.
- My Death Is Just the Beginning: After his death, he became a mandala guardian of the Library to continue serving his master Shandor.
- Serial Killer: He was known as the "Library Serial Killer."
- Would Hit a Girl: Murdered his girlfriend Eleanor Twitty, and many other women after her.
"Well, that's just great. Either I have a monster in my kitchen or I'm completely crazy."
"Who does your taxes?"
Janosz Poha (Peter MacNicol)
Ilyssa Selwyn (Alyssa Milano)
Just watched a giant marshmellow man blow up, no biggy.
- All There in the Manual: Most of her life before the game.
- Conveniently an Orphan: Her parents died in a cave-in when she was 15.
- Distressed Damsel: She gets kidnapped twice in the game, and both times has to be saved by the Ghostbusters.
- Demonic Possession: In the start of the game, she is possessed and brought to the Sedgewick Hotel 12th floor. Later, she is possessed momentarily while she's at the museum.
- Happily Adopted: Her adoptive parents used to bring her with them everywhere...till, you know, they died.
- Identical Great-Granddaughter: Ilyssa looks just like her great-grandmother, Ivo Shandor's mother.
- Informed Attribute: Her fact sheets says Ilyssa enjoys traveling, modern painting, French New Wave cinema, is fluent in six languages (two of which haven't been spoken in over 4000 years), plays violin proficiently and is learning the cello. Well, she's quite well-rounded, ain't she?
- In the Blood: Sorta. Ilyssa doesn't realize she's the granddaughter of Ivo Shandor for most of the game, but she has a strange fascination with Gozerian mythology. Shandor was a big believer in Gozer back in his living days.
- Irony: She hates abrasive or pushy personalities. Guess who she falls in love with?
- Like Father, Like Daughter: She ended up getting into anthropology just like her parents.
- Love Interest: Replaces Dana Barrett as this in the game.
- Luke, I Am Your Father: Ilyssa finds out she is a direct descendant of Ivo Shandor. How is this revealed to her? He tries to sacrifice her, of course.
- Parental Abandonment: Twice! Both her biological and her adopted parents died when she was young. She doesn't seem broken up about this.
- Tsundere: Type B, she seems to be nice normally, unless she's around Venkman. Can you really blame her, though?