Characters / Monsters vs. Aliens

Characters from the series.

Introduced in the Movies and specials

Susan Murphy/Ginormica

Voiced by: Reese Witherspoon (Film, Mutant Pumpkins From Outer Space, and video game), Riki Lindhome (TV series)

Susan Murphy (her monster nickname being "Ginormica") is a normal woman who is hit by a radioactive meteor on her wedding day, causing her to mutate and grow to a height of 49 feet 11 inches (15.21 m). Meek and unassertive, she just wants to return to her old life, but gradually warms up to her new status as a monster. In addition to her size, she is amazingly strong and has a resistance to energy attacks.

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• Action Girl: Grows into one throughout the film. Once she becomes assertive and grows a backbone, she's able to take down a giant robot and fight Gallaxhar, even when she's shrunk back to her regular size.
• Affectionate Nickname: She's called "Susie Q" by her father, and called "Susie" and "Suze" by Link in Mutant Pumpkins and the TV series.
• Attack of the 50-Foot Whatever: Susan is 49-foot-11, just one inch off.
• Badass Adorable: She's a kind and dorky young woman who, over the course of the movie, manages to take down a giant robot and eventually stop an alien invasion.
• Beware the Nice Ones: Susan is quite sweet and loyal to her companions. However, as the movie progresses, she becomes more assertive when facing aliens. Right at the end, she also breaks up with Derek on live TV once he started acting like a self-absorbed ladder climber who blamed her for her mutation.
• The Big Girl: In the 2013 series, she does double duty as both The Leader and the group's muscle, replacing Insectosaurus. In her giant mode, she's the strongest member of Team Monster, bar none.
• Break the Cutie: She starts off happy with her life, only to lose it all on her wedding day to something out of her control, ends up scared and alone in a place she doesn't know and unable to call anyone, and finds out the man of her dreams doesn't actually care for her. Things do eventually perk up for her, but still.
• Bridezilla: Inverted. Despite transforming into a giant during her wedding, she tries to stay calm and composed while everyone else is panicking. She does cause some property damage, but purely by accident.
• Brought Down to Badass: Despite losing her quantonium during the climax of the movie, she takes enough levels in badass to skate her way to the control deck and take on Gallaxhar himself, despite him being larger than her by that point and wielding a laser gun.
• Brought Down to Normal: She loses her size and strength during the third act of the movie, courtesy of Gallaxhar draining the quantonium from her body.
• Butt-Monkey: In the TV series, she suffers occasional moments of slapstick. Her most embarrassing incident was getting shot in the butt with pickles while the whole thing was posted on the internet.
• Costume Evolution: Susan switches her black jumpsuit out for a blue jumpsuit and puts her hair up into a ponytail for the animated series.
• Cute Clumsy Girl: When she's struggling to get the hang of her newfound size, she's shown to be pretty clumsy, such as accidentally knocking a helicopter over, nearly falling off a roof, and subjecting Derek to And Call Him "George" when she finally reunites with him. These incidents just serve to make her more endearing to the audience, and she eventually gets the hang of it by the end of the movie.
• Cute Giant: Susan may be giant, but she's still an adorable woman.
• Cute Monster Girl: She may be a giant, but she's still an attractive young woman.
• The Cutie: Despite her immense size and strength, Susan's still an adorable young woman with a fairly sweet (if naïve) personality. It's hard not to find her cute when she gushes over her love of Paris in the opening, puts on Puppy-Dog Eyes when she begs to go home, or excitedly rambles about taking down the alien robot.
• Damsel in Distress:
  • Almost immediately after becoming a giant, she is captured by the military and trapped in a monster prison with no hope of escape. Rather than escaping or being rescued, she is released roughly one month later to fight the alien robot.
  • During the third act, she is abducted by Gallaxhar and drained of her quantonium, reducing her to her normal human size and leaving her helpless against the alien and his clone army. However, once Link, B.O.B. and Dr. Cockroach come to save her, she helps them fight the clones and eventually saves them from Gallaxhar's ship by reabsorbing the quantonium.
• Deconstruction: Susan is the stereotypical modern woman. About to get married, normal everyday name, loving parents, middle class lifestyle. Most of that goes out the window following her mutation, and the rest of the movie is based around her picking up the pieces. It becomes a Reconstruction, however, when she ultimately becomes a stronger person for it.
• Desperate Plea for Home: Shortly after Susan/Ginormica is captured by the US government, she awakens to find herself in a secret facility that houses other monsters such as herself, and is given a brief tour of the facility by General W.R. Monger, where she's duly informed she'll basically be living there for the rest of her life. Naturally, given that she's only been a giantess for all of a day and a half - and that's only because a meteor full of Quantonium fell on her just minutes before she was going to be married - she's incredibly upset at this and begs Monger to let her go home.
• Does Not Know Her Own Strength: She doesn't know how to control her strength for most of the movie, destroying a helicopter early on and subjecting Derek to bone-crushing hugs and near-neck-snapping kisses. She gains more control over her strength during the 2013 series, showcasing her Character Development.
• Expy: Evidently a more light-hearted take on Nancy Archer, the titular character in Attack of the 50 Foot Woman. Poor woman with a slimeball husband who gets turned into a giantess by alien technology, but Nancy Archer is more of a Tragic Monster while Susan is just straight-up The Heroine.
• Four-Temperament Ensemble: The melancholic. She's by far the most human of all the monsters, and she's very susceptible to being driven by her emotions.
• Genius Bruiser: Downplayed. She's no Dr. Cockroach, but she's shown to be very cunning and quick-witted on top of being one of the strongest members of the team. She defeats the alien probe by using the Golden Gate Bridge to knock it down and cut off its head, and she later defeats Gallaxhar by outsmarting him after he extracts the quantonium from her body.
• Gentle Giant: She's 49 feet and 11 inches, and she's very nice.
• Giant Woman: Due to a meteor falling on her.
• The Heroine: The movie revolves around Susan embracing her monster status.
• I Choose to Stay: After having the quantonium extracted from her body, she has the choice between either escaping Gallaxhar's ship and returning to her normal life in Modesto, or reabsorbing it to save her friends but guaranteeing she can't go back to normal again. She chooses the latter and remains a giant, moving into the military base and accepting her new life as a monster. In the 2013 series, she gains the ability to revert back to normal, but continues to live in the base.
• I Just Want to Be Normal: For most of the movie, she mostly wants to return to her original size, leave the facility and get back to her normal life. She eventually grows to enjoy her new form, however.
• Innocent Blue Eyes: Which represents her kindness and naivety.
• Joke of the Butt: In the series, several jokes are made about Susan's "ginormous bum", such as accidentally crushing her friends with it when she grows big, using it to plug a wormhole, and suffering a Potty Emergency after listening to B.O.B.'s potty song. The lowest point has to be in "Bride of the Internet", where she gets pickles shot onto her butt and becomes an internet meme known as "trashface picklebutt".
• The Leader: Of Team Monster in the series.
• Locked into Strangeness: Her hair was originally brown but after getting hit by a Magic Meteor her hair turns white. When Gallaxhar temporarily shrinks her back to normal size in the film, her hair stays white.
• Made of Iron: She takes a lot of damage throughout the movie, such as being hit by a meteorite and crushed by the alien probe's claw, but is always fine by the next scene. It's implied that the quantonium granted her some degree of Super-Toughness.
• Magic Pants: In the series, her jumpsuit shrinks and grows with her when she changes size. Also, in the movie, her wedding dress manages to stay on her body in spite of ripping in some places.
• Meaningful Name: Her last name is "Murphy". Considering how much goes wrong for her, it's extremely appropriate.
• Meaningful Rename: When she becomes a giant, the government forcibly changes Susan's name to Ginormica. For most of the movie, she refuses to go by that name and continues to refer to herself as Susan. However, after she comes to embrace her new size and abilities, she finally accepts herself as Ginormica.
  Gallaxhar: [panicked] Now we're all going to die, and here's nothing you can do about it! [mockingly] SUSAN!
  Susan/Ginormica: I wouldn't be so sure. And the name... is Ginormica.
• Mystical White Hair: As a result of getting hit by a Magic Meteor.
• Naïve Everygirl: She's a kind, meek woman who is shown to be naïve at times (such as failing to realize what a jerk Derek is until he dumps her) and takes a while to adjust to being a monster. However, as the movie goes on, she eventually wises up and becomes a stronger person.
• Nice Girl: Susan is a kind and caring woman.
• One of the Boys: In the show, where she's the only girl in Team Monster, she frequently gets into antics and does "guy stuff" with Link, B.O.B. and Dr. Cockroach.
• Only One Who Likes Spam: In the cartoon, she's the only one who likes Turkey Tetrazzini, whereas everyone else, even B.O.B., thinks it's too disgusting to look at, let alone eat.
• Only Sane Woman: Being the closest thing to a human among the monsters, she's by far the most reasonable one and often has to keep Link's macho attitude, B.O.B.'s stupidity, and Dr. Cockroach's megalomania in line.
• Picked Last: She had been picked last for dodgeball a lot when she was younger; training dummies were even picked before her.
• Power Dyes Your Hair: Susan's hair turned white after the quantonium she absorbed turned her into a giant. Notably, she retains the white hair even after having the quantonium (temporarily) taken from her body.
• Power Glows: Her skin glows green as she is about to grow; her fiance literally says this to her.
• Power Incontinence: Downplayed. When she gets the power to change her size, she's usually good at staying human-sized, but occasionally loses control and grows huge when startled.
• Sensual Spandex: Dons a black, skin-tight spandex suit upon being abducted by Gallaxhar.
• Single Woman Seeks Good Man: Susan was in love with Derek, when she thought he was a devoted and loving man. However, she ended up crushed when his true personality showed, and promptly got her revenge.
• Sizeshifter: In the series, Susan gains the ability to go from monster-size huge to normal human size at will by thinking certain thoughts.
• The Smurfette Principle: Zig-Zagged. She appears to be the only female in the group (though she is the main character), but Insectosaurus is later revealed to be female by the end. However, in the animated series where Insectosaurus is absent altogether, Susan is the only female member of Team Monster.
• Strong Family Resemblance: To her mother, especially before her transformation — Susan is basically a younger version of her mother.
• Super-Strength: One of the advantages of being a 49ft 11in giant imbued with quantonium/hyperion energy is enough strength to easily smash through stone, steel, alien metals, and even energy barriers.
• Super-Toughness: It's implied the quantonium in her body also boosted her resilience on top of granting her "enormous strength and size", as she survives such things as a meteorite crushing her, being electrocuted by one of Dr. Cockroach's experiments, and being crushed by one of the alien probe's claws with only minor injuries (if even that). She can still feel pain (the aforementioned experiment knocked her out for an undisclosed period of time), but never suffers a permanent injury.
• Thunderbolt Iron: An inverted, ironic twist being it was not the meteorite that landed on Susan which gave her monster powers, but the quantonium radiation held within it.
• Token Human: For a certain degree of "human"; she's the only one of the monsters who still looks, thinks and acts like a human, just much larger. It's more prominent in the animated series, where she spends most of her time human-sized and only sporadically becomes a giant.
• Took a Level in Badass: Susan learns to embrace herself as a "monster", going from a scared woman to a powerful titaness who manages to take down a giant alien robot by herself, and later defeats the alien who sent it after being Brought Down to Normal.
• Took a Level in Smartass: In the series, she quips far more often and is shown to be a bit of a Deadpan Snarker, while in the movie she almost never quipped.
• Trademark Favorite Food: Turkey Tetrazzini.
• Tron Lines: These appear on her jumpsuit when she changes her size in the series.
• Unstoppable Rage: When enraged, virtually nothing can stop her. Out of anger over the apparent death of Insectosaurus, she tears through the walls in Gallaxhar's ship like they were made of paper and almost kills Gallaxhar himself. The only thing that stops her is the quantonium extraction machine, and even then it's implied she could have broken through that too if she had a few more seconds.

Dr. Cockroach Ph.D

Voiced by: Hugh Laurie (Film and Mutant Pumpkins from Outer Space), James Horan (Video game and Night of the Living Carrots), Chris O'Dowd (TV series)

Dr. Herbert Cockroach Ph.D (sometimes referred to by the others as Doc) is a brilliant but mad scientist who, in an experiment to imbue himself with the abilities of a cockroach, ending up with a giant cockroach's head and some cockroach personality, but gained the ability to climb up walls and high resistance to physical damage.

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• Amazon Chaser: He is noticeably smitten with Susan after she defeats the giant alien robot.
• Body Horror: His head got mutated into that of a cockroach.
• Cursed with Awesome: His cockroach experiment turned his head into a cockroach, but also granted him the durability and agility of one.
• Dance Battler: As shown during the film when he uses dance manoeuvres to program Gallaxhar’s ship to self-destruct.
• Evil Laugh: He may be a hero, but he still does plenty of these.
• Expy: Of Andre Delambre from The Fly, who was also a Mad Scientist who fused himself with an insect.
• Extreme Omnivore: Justified since he's a human transformed into a cockroach.
• Four-Temperament Ensemble: The eclectic. Being a Mad Scientist, his emotions are prone to switching on a dime depending on who he's interacting with.
• Gadgeteer Genius: He's able to build technologically advanced gadgets out of various things he finds in the trash, among other places.
• Half-Human Hybrid: His Backstory (a parody of 1958's The Fly) is that he's a human who accidentally fused himself with a cockroach.
• Labcoat of Science and Medicine: His usual attire.
• Made of Iron: As it was the point of his experiment, he's now every bit as indestructible as a cockroach.
• Mad Scientist: His whole shtick. He's openly embraced the title, insisting at one point that "I'm not a quack, I'm a mad scientist. There is a difference."
• Nice Guy: Despite being a Mad Scientist with a penchant for Evil Laughs, he's ultimately shown to be a charming and gentlemanly individual - he's willing to do everything he can to help Susan become normal again despite not gaining anything from it, and is perfectly happy to distract the giant robot to allow her to get to safety.
• Omnidisciplinary Scientist: He's good with tech and biological science.
• Sensitive Guy and Manly Man: The Sensitive Guy to Link's Manly Man.
• The Smart Guy: He's the brains of Team Monster, being a master tinker.
• Trademark Favorite Food: His favorite foods are Garbage and Swirlypops, the latter so much so that he once shut out Halloween entirely after his was destroyed by a group of bullies and warms up to it again when offered one that's identical to the one that was destroyed.

The Missing Link a.k.a. Link

Voiced by: Will Arnett (Film, video game, and Mutant Pumpkins from Outer Space), David Kaye (Night of the Living Carrots), Diedrich Bader (TV series)

The Missing Link is a 20,000-year-old fish-ape hybrid who was found frozen and thawed out, only to escape and wreak havoc at his old lagoon habitat. Usually referred to as Link, he behaves as a macho jock most of the time, but is out of shape.

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• Abhorrent Admirer: In the series, he holds a torch for Sta'abi and won't stop trying to win her over. Since he's a grotesque fish monster, she can't stand him and frequently beats him up.
• Amazon Chaser:
  • In the movie, he was visibly impressed upon seeing Susan lifting the alien probe's claw.
  • In the series, he's attracted to the alien warrior Sta'abi and frequently tries to flirt with her.
• Badass Decay: In-Universe. The Missing Link apparently once held his own against the Navy, the National Guard and some baywatchers. (And the lifeguard.) Until he beats up about thirty clones in hand-to-tentacle combat, that's VERY hard to believe.
• Bigfoot, Sasquatch, and Yeti: He partly resembles an ape.
• Boisterous Bruiser: In the movie, he starts as a boastful Miles Gloriosus who cultivates this image, but doesn't live up to his own hype... until it's time to rescue Susan.
• Butt-Monkey: The writers like to mess with him a bit: he breaks his back, bumps his head on a manhole cover, spends most of the fight with the alien robot knocked out, gets chlorine in his eyes, ends up mistaken for a defective Gallaxhar clone and almost taken to the incinerator, among other Amusing Injuries.
• Character Catchphrase: "You don't want to tussle with all this muscle".
• Ear Fins: He is a half-fishman with fins for ears.
• Expy: Of Gillman, being a humanoid aquatic creature, except his backstory spoofs The Thing (1982).
• Feeling Their Age: Played with. His backstory implies that he was a decent threat, but spending 50 years in a jail has severely impacted his stamina and agility. It really doesn't help that his only fighting experience is against humans when he has to defeat a giant robot.
• Fish Person: Duh. He appears to be a fish-ape hybrid.
• Four-Temperament Ensemble: The choleric. By far the most cynical of the monsters while also having a lot of jock tendencies.
• Gag Lips: Has oversized fish lips.
• Harmless Freezing: It's in his backstory, where he was frozen in ice until thawed out.
• Heterosexual Life-Partners:
  • In the movie, he and Insectosaurus are basically inseparable, with Link being the only one who can understand Insecto's roars.
  • In the series - where Insectosaurus is absent altogether - he is shown to be best friends with B.O.B. instead.
• Human Popsicle: Was frozen for 20,000 years, though granted he's not really human.
• Intergenerational Friendship: With Sqweep in the TV series, with Sqweep being 700+ years old (but mentally still a child) and Link being thousands of years old (biologically at least, considering he was frozen in ice for millennia before unfreezing).
• Jerk with a Heart of Gold: He can be pretty full of himself. No matter what though, he does care for his friends.
• The Lancer: Typically the second-in-command after Dr. Cockroach.
• Muscle Beach Bum: Seems to be based on this archetype; he's proud of his muscles, is shown lifting weights in his enclosure, is always trying to attract babes, and gained infamy for terrorizing civilians at a beach.
• Our Cryptids Are More Mysterious: Seems to be a cross between a Fish Person and a bigfoot.
• Sensitive Guy and Manly Man: The Manly Man to Dr. Cockroach's Sensitive Guy.
• Swamp Monster: He's a parody of the Creature from the Black Lagoon resembling an ape with green scales and Ear Fins.
• Team Dad: He has surprising shades of this.
• Translator Buddy: To Insectosaurus.

B.O.B.

Voiced by: Seth Rogen (Film and video game), Eric Edelstein (TV series), Dave B. Mitchell (Madagascar Kartz), Dave Shalansky (DreamWorks Super Star Kartz)

B.O.B. (Benzoate Ostylezene Bicarbonate) is an indestructible gelatinous mass created when a genetically-altered tomato was injected with a chemically-altered ranch dessert topping, the resulting goo gaining some form of consciousness.

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• All-Loving Hero: He very rarely hates anyone. Derek becomes a big exception after he heard from Susan how Derek is a selfish jerk.
• Ambiguously Bi: Although it's the result of him projecting Susan onto himself out of idiocy, he starts to show interest in Derek, saying he deserves a chance to be with him. However, he perceives the gelatin that he falls in love with as a woman, and uses it to show that he's found someone else when he "dumps" Derek at the end.
• Animal Sweet on Object:
  • At the pool party celebrating Susan's return from government captivity, he becomes infatuated with a pineapple gelatin, who he says to Derek is everything he deserves in life.
  • In Night of the Living Carrots, he flirts with a lava lamp in Susan's bedroom and even gives it his number (5).
• Big Fun: He's a big, blob monster but a very happy-go-lucky one.
• Blob Monster: As literal as the trope can get, given he's a Captain Ersatz of the Trope Namer.
• Blue Is Heroic: A blue monster who happens to be one of the heroes.
• Breakout Character: As a result of his Kid Appeal, B.O.B. quickly eclipsed the other monsters to become the most popular character of the movie, leading to his greater prominence in the series. He's also the most likely to appear in DreamWorks-related crossovers as a result.
• Captain Ersatz: Of The Blob.
• Cloudcuckoolander: He lacks a brain, and it shows.
• Cyclops: Only has one eye.
• The Ditz: Parodied to its logical extreme. Because he's an amorphous blob, he quite literally has no brain.
  B.O.B.: Turns out, you don't need one!
• Does Not Like Spam: He hates carrots, as a result of Monger force-feeding carrot puree to him for years before the events of the movie.
• Extreme Omnivore: This guy will eat anything. ANYTHING. Then again, given who he's a parody of this isn't a surprise.
• Four-Temperament Ensemble: The sanguine. He's both the most outgoing and the most hyperactive of the bunch who's almost never in a bad mood.
• Fun Personified: Very happy-go-lucky and is quite playful when loving to play tons of games (whether they're eccentric or not), the movie and the short "B.O.B.'s Big Break" enhanced this trope.
• Fun with Acronyms: His name stands for Bensoate Ostylezene Bicarbonate.
• Gelatinous Encasement: B.O.B. is prone to do this to others, accidentally or otherwise.
• Hilariously Abusive Childhood: When B.O.B. was a child, Monger force-fed him nothing but carrot puree for years on end, resulting in him developing a fear of carrots in Night of the Living Carrots.
• Immune to Mind Control: In the series, it's shown that due to his lack of a brain, B.O.B. is immune to mind-altering devices, such as Sqweep's mind-ray (which simply passed through him and caused the rest of the base to act like dogs) or memory eraser.
• Ink-Suit Actor: He has Seth Rogen's eye, mouth shape, and signature laugh.
• Keet: Is eternally happy and upbeat with just about everything.
• Kid-Appeal Character: This explains his prominence in the TV series.
• Kindhearted Simpleton: He's very dimwitted and clueless, but very kind, well-meaning and friendly.
• The Millstone: Due to his stupidity, B.O.B. has a tendency to ruin the other monsters' plans with his bumbling, such as accidentally causing Dr. Cockroach to crash his rocket tram into the sea, or inadvertently creating an army of zombie carrots in the Night of the Living Carrots special. Exemplified in the series, where 90% of the problems in the show are caused by B.O.B. to begin with.
• Plucky Comic Relief: B.O.B. often provides the main source of humor whenever he's on-screen due to his goofy Cloudcuckoolander tendencies.
• Rubber Man: Being an indestructible blob, he can absorb any physical attack and bounce it right back. In the movie, at least.
• Series Mascot: He's the most iconic character to come from the movie, and is frequently used in advertising and crossovers to represent the series as a whole.
• Spanner in the Works: Blew the other monsters' escape attempt by thinking a government plane was a piñata and usually screws up Dr. Cockroach's plans by his stupidity.
• Spotlight-Stealing Squad: Gets a ridiculous amount of time devoted to his random antics in the 2013 series, to the point where he might as well be the main character instead of Susan. He's notably the only main character to appear in every episode.
• Super-Strength: Implied to have some level of enhanced strength, since he effortlessly picks up and eats several heavy road dividers and carries Dr. Cockroach, Link, and a depowered Susan up to the spaceship control room by himself.
• Telepathy: He gains the ability to read minds in the B.O.B.'s Big Break short after consuming an explosive piece of Jell-o, which the other monsters used in an attempt to escape the facility. He loses the ability by the end of the short, but it's implied he still has some form of it during one scene in the movie itself where he mistakes the other monsters' respective thoughts for his own.
• Too Dumb to Live: He once forgot how to breathe.
• Voluntary Shapeshifting: In the show, he can shapeshift his body into a variety of things, such as spawning multiple limbs or turning into a dog.
• Wolverine Publicity: Despite not being the main protagonist, B.O.B. gets the lion's share of promotion. On one of the DVD covers◊, he's the focus character while Susan (the actual main protagonist) is shunted off to the side, and he gets top billing in the 2013 series with a majority of episodes and advertising focusing on him over any of the other monsters or aliens.

Insectosaurus/Butterflysaurus

Voiced by: Conrad Vernon

Insectosaurus (nicknamed "Insecto") was formerly a 1-inch (25 mm) grub transformed by nuclear radiation into a 350 foot (110 m) monster with the ability to shoot silk out of her nose, referencing that she is a silkworm. She is best friends with Link, who mistakenly believed that Insectosaurus was male... until she transformed into a butterfly with feminine characteristics at the end of the film. The book The Art of Monsters vs. Aliens confirms that Insectosaurus is indeed female.

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• All Animals Are Dogs: A giant bug who really enjoys bellyrubs and being petted.
• Attack of the 50-Foot Whatever: Easily the biggest of the Monsters, at 350 feet tall.
• Attention Deficit... Ooh, Shiny!: Easily distracted by bright light.
• Big Creepy-Crawlies: She's a giant silkworm.
• The Big Guy: This 350-foot grub is, bar none, the biggest and strongest member of Team Monster.
• Came Back Strong: After being downed by Gallaxhar's ship and put in a cocoon, she emerges as the Giant Flier Butterflysaurus and saves the rest of the team by the climax.
• Chuck Cunningham Syndrome: She doesn't appear in the TV series, with no explanation given for her absence.
• Female Monster Surprise: At the end of the film, she becomes a butterfly with large eyelashes and a feminine figure, leading Link to rename her "Butterflysaurus".
• Four-Temperament Ensemble: The phlegmatic. Due to being The Unintelligible, her emotions aren't front and center, and she's usually docile in spite of this.
• Gentle Giant: Despite her large size, Insectosaurus tries not to cause unnecessary property damage. She's smart enough to hold the Golden Gate Bridge up so her friends don't fall and avoids entering crowded areas when necessary.
• Giant Flyer: Becomes this after becoming Butterflysaurus.
• Intelligible Unintelligible: She only speaks in roars and other animal noises, but Link serves as her Translator Buddy.
• Kaiju: Represents this genre of creature feature.
• Mighty Glacier: She's about as slow and tough as you'd expect a 350-foot tall monster to be. She easily holds up the Golden Gate Bridge, but it takes a while for her to get there to begin with, and she fails to dodge an energy shot from Gallaxhar's ship.
• Moth Menace: Becomes one after pupating.
• Pretty Butterflies: When she becomes a butterfly at the end, she gains longer lashes and a generally "prettier" look.
• Sacrificial Lion: To show just how dangerous Gallaxhar is, an energy blast from his ship downs - and seemingly kills - Insectosaurus in one shot, putting her out of commission for the third act. However, she ends up surviving and is reborn as Butterflyosaurus.
• Shout-Out: To both Godzilla (her origin as a radioactive mutant) and common Godzilla co-star Mothra (her silk-shooting ability, metamorphosis, and general insectoid appearance.)
• Team Pet: She's the pet of Link.

General W.R. Monger

Voiced by: Kiefer Sutherland (Film), Fred Tatasciore (Video game), Kevin Michael Richardson (TV series)

General Warren R. Monger is a military leader who runs a top secret facility where monsters are kept. It is his plan to fight the invading aliens with the imprisoned monsters.

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• Big Good: He occupies this role, although it is limited to capturing the monsters and then directing them to the threat.
• Cool Old Guy: In the film he states that he's been the monsters' warden "for 50 years".
• Expy: Of General Jack D. Ripper, Sterling Hayden's character in Dr. Strangelove.
• Four-Star Badass: Has no problem taking to the field when he has to.
• General Ripper: Implied with his name, but it turns out to be a subversion — he's shocked when the President accidentally launches a nuclear strike.
• Ironic Name: Despite his name being a pun on "Warmonger", Monger actually tries to prevent wars in any way he can and stops the President from going for the Nuclear Option.
• Jerk with a Heart of Gold: He's a bit gruff and not overly sympathetic towards the monsters for keeping them imprisoned, but he's a decent guy deep down, who shows respect for them and even has them released when they successfully take down the alien probe.
• Jetpack: He often uses this as transportation.
• Older Than He Looks: He looks good for 90.
• Punny Name: A play on "Warmonger".
• Reasonable Authority Figure: Even though he captured and imprisoned the monsters, he shows a great respect for them. In unused footage he was not pleased to hear that the president planned to take back his offer for the monster's freedom to save face.
• Schoolyard Bully All Grown Up: Implied when he wedgies the 'nerd' at the conference who objects to his Monsters vs. Alien plan.
• Unable to Cry: Revealed in the final scene of the film, which he lampshades when he remarks that "Monsters, I'm so proud of you, I could cry, if I hadn't lost my tear ducts in the war."

The Invisible Man

Mentioned in the film and had a brief cameo in "B.O.B.'s Big Break". He supposedly died before the events of the first film.

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• Deadpan Snarker: He loves making jabs at his friends, notably saying that Dr. Cockroach loves digging around in garbage.
• Invisibility: Well duh. He is called the Invisible Man for a reason.
• Pantomime: One of his favorite games to play is charades, where he often makes jabs at the people he's playing as.
• Posthumous Character: Died before the movie, in 1984. The only time he's seen alive is in a very brief appearance in "B.O.B.'s Big Break".

President Hathaway

Voiced by: Stephen Colbert (Film), James Patrick Stuart (TV series)

President Hathaway is the impulsive and dimwitted President of the United States.

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• Bring My Brown Pants: When he sees Gallaxhar’s global transmission threatening to end or enslave all life on Earth, this is what he has to say. "Boys, set the terror level to 'code brown', 'cause I need to change my pants!"
• Dude, Where's My Respect?: In one episode in the animated series, he felt that no one listens to him even though he is the president.^note It's a less than subtle jab at the partisan politics during Barack Obama's presidency, where any sort of compromise is practically a miracle.
• Everyone Calls Him "Barkeep": He is often called by his title.
• Human Popsicle: After he accidentally causes nuclear fallout during The Stinger when trying to get W.R. Monger his latte, he requests to be put in cryostasis.
  President Hathaway: Time to wave the white flag and head for the bunker, boys! Let's check up on the situation in 500 years. (leans out to the audience) Who wants to freeze my head?
• Ink-Suit Actor: His facial features resemble Stephen Colbert, and his personality is inspired by Colbert's character on The Colbert Report.
• Inventional Wisdom: The nuclear fallout button is designed to be right next to the latte button, with him asking who designed it like that. One of his subordinates then says it was the President's idea.
• Manchild: He's stupid and immature.
• No-Respect Guy: Particularly odd seeing as he's, well the president. However in the series, he's desperate enough for the respect that his office should afford him to explicitly ask Dr. Cockroach to "make people do what I say".
• Our Presidents Are Different: He aspires toward President Action, but in reality he's closer to President Buffoon.

Gallaxhar

Voiced by: Rainn Wilson

Gallaxhar is an evil alien overlord who hopes to take over Earth and serves as the main antagonist of the film.

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• Adaptational Badass: His video game counterpart is portrayed as having more control of the situation and also puts up way more of a fight in the final confrontation.
• Ax-Crazy: Downplayed. He's very much Laughably Evil on screen and doesn't really have any shown moments of insanity, but he did destroy his own planet seemingly for no reason other than his own amusement, possibly hinting that beneath the surface he has some screws loose in that giant head of his.
• Backstory: He tells Susan the story of how he became evil as he's being cloned, but the cloning process keeps interrupting him (in a comic use of Plot-Based Voice Cancellation), so she (and we) only hear parts of it. Essentially, it boils down to him snapping because of too much frustration with his parents and wife.
• Big Bad: Of the movie.
• Bizarre Alien Biology: Implied in one scene where he drinks tea through his ear and spits it out through his mouth, implying his species consumes food differently from humans.
• Evil Gloating: He's got Chronic Monologue Disorder something fierce!
• Evil Overlord: He may be a funny character, but he's also a legitimate threat. He did destroy his homeworld, after all.
• Evil Is Petty: When he tells Ginormica why he destroyed his home planet, he incompletely suggests it was just because he disliked his parents and got into an argument with his wife.
• Extra Eyes: Shown to have four eyes placed single-file on his head.
• Faux Affably Evil: He's "polite" but he still has no problem with committing genocide.
• For the Evulz: Initially, he invaded Earth because he had a humble goal of getting back his Quantonium from the meteor that turned Susan giant. However, he decides that while he's there, he might as well take over the planet for the heck of it.
• Genocide from the Inside: He mentions that he wiped out his entire planet.
• Jerkass: Gallaxhar isn't nice by any means.
• Laughably Evil: Despite his genocidal tendencies, Gallaxhar still has plenty of comedic moments, such as scalding his ear with hot tea, having his tragic backstory repeatedly interrupted, being unable to decide on a name for his planet, and getting poked in the eyes by Susan.
• My Brain Is Big: He has a gigantic forehead that makes up roughly one third of his overall size, befitting a galactic overlord with a giant spaceship and robot army. It's what allows him to tower over Susan after the latter loses her Quantonium.
• Naked People Are Funny: Not Gallaxhar himself, but his clones are humorously shown covering their non-existent genitalia right after being cloned, only getting clothing at the next step of the process.
• Non-Humans Lack Attributes: If his clones - which are created nude with nothing shown - are any indication, Gallaxhar lacks any form of external genitalia.
• Noodle Incident: We never learn the full details of his backstory, as he keeps getting cut off when he tells Susan about it. The only things we know for sure is that he hated his parents and he once argued with his wife.
• Octopoid Aliens: Has long legs that look like tentacles with suction cup toes and even has an oversized head like an octopus.
• Villainous Breakdown: He starts off very condescending and mocking as his plan progresses, but as the monsters thwart his plans and eventually set his ship to self-destruct, he quickly loses it. When Susan foils his escape plan and steals her Quantonium back, he goes into full panic mode as he tries (and fails) to escape.
• Where I Was Born and Razed: Gallaxhar destroyed his home planet and everyone in it for no explicit reason beyond being For the Evulz.

Robot Probe

A gigantic black and blue cycloptic robot probe that Gallaxhar sends to Earth to retrieve the quantonium inside Ginormica.

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• Conservation of Ninjutsu: The one probe Gallaxhar sends to Earth puts up a huge fight against the monsters and military, with only Ginormica doing any meaningful damage to it. Yet when Gallaxhar sends out an entire fleet of probes to kill a depowered Ginormica, she easily evades their attacks and causes all of them to harmlessly tumble like dominos.
• Cyber Cyclops: An alien robot with one large, blue eye.
• Deflector Shields: The robot has blue shields that harmlessly deflect any from damage from its body.
• Degraded Boss: A rare non-game example. The probe is built up as a major threat throughout the first half of the movie, and it takes Ginormica decapitating it after a long battle to finally put it down. Yet later in the movie, we see that the probe was just one of hundreds in Gallaxhar's ship.
• The Juggernaut: Virtually nothing will stop the robot from getting its quantonium. An assault from the military merely bounces off of its Deflector Shields, Link is knocked out in one hit, and it can effortlessly travel through buildings and water. It takes Ginormica using the Golden Gate Bridge itself to cut off its head before it finally goes down.
• Off with His Head!: The probe is ultimately defeated when Ginormica pulls it into the water, causing it to get decapitated by the Golden Gate Bridge's arches.
• Red Eyes, Take Warning: The robot's eye is blue by default. However, it turns red when it finds Ginormica and realizes the quantonium is inside her, at which point it becomes far more aggressive in trying to kill her.

Derek Dietl

Voiced by: Paul Rudd (Film), Nolan North (TV series)

Derek Dietl is a local weatherman and Susan's ex-fiancé.

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• Alliterative Name: Derek Dietl.
• Bitch in Sheep's Clothing: He is initially portrayed as a loving boyfriend, but it quickly becomes apparent that he cares more about his career (and himself) than Susan. His true colours become apparent when Susan becomes a giant and defeats the alien robot, prompting him to break up with her out of the belief that she would upstage him.
• The Bus Came Back: Surprisingly, after being absent from all of the spin-off media following the movie, he actually returns in one episode of the TV series, "It Came From Channel 5", where he attempts to sneak into the base and report the aliens' existence.
• Butt-Monkey: Very little goes right for him. He gets crushed by rubble and accidentally dropped to the ground during his wedding day, Susan inadvertently subjects him to And Call Him "George", and he gets flung into the air, swallowed by B.O.B. and spat out onto the pavement at the end of the movie. Considering what a prat he is, it's entirely deserved.
• Cut Lex Luthor a Check: Apparently, it never occurred to Derek that staying with not only a Giant Woman, but also one that helped save the city, could have potentially made him even more famous.
• Disposable Fiancé: Derek turns out to be, in Susan's words, a selfish jerk. His wedding day attempt to convince her that his job interview in Fresno is an acceptable substitute (rather than an unfortunate delay) for the planned Parisian honeymoon pushes him into the true jerk category.
• Fair-Weather Ex: He broke up with Susan because she felt her becoming a giant would lead to her upstaging him. At the end of the movie, he tries to get back with her out of a desire to boost his own career, and is naturally rejected.
• Hate Sink: While Gallaxhar may be the main threat of the movie, he at least has Laughably Evil qualities. Derek on the other hand is much more hateable, being an utterly selfish jerkass who only cares about becoming famous and was perfectly willing to break up with his loving girlfriend out of fear that she would upstage him.
• Humiliation Conga: Suffers a major one at the hands of his former fiancée Susan by the end of the movie: not only does Susan see right through his fake apology and call him out, but he ends up launched though the air, swallowed by B.O.B., spat out onto the pavement, and given a "Reason You Suck" Speech by the blob, who then rejects him for a plate of jello. And all of it was caught on national television to boot!
• Hypocrite: Just listen to the reasons he gives whilst breaking up with Susan, and then at his own actions and requests.
• It's All About Me: Derek doesn't care about Susan at all, only about his career.
• Jerkass: Breaks off his engagement with Susan when she turned into a giant. She realizes he cares more about his career than her, and is angry that it only took becoming a giant to realize that.
• Jerk with a Heart of Jerk: One reason he tries to reconcile with Susan at the end of the film is that he can get a network job in New York City if he gets an exclusive interview with her.
• Lack of Empathy: Derek has never taken Susan's feelings before his own. Even when she was taken to monster prison, it's heavily implied he's shown no way concerned for her nor even made any effort to find his fiancé. In fact, he was rather chill about Susan's imprisonment so he could focus more on his career, even callously dumping Susan when she returns.
• Married to the Job: The reason Susan breaks up with him is that all he really cares about is becoming a famous weatherman. Indeed, even before she became a monster, he moved their honeymoon from Paris to Fresno so he could attend a job interview.
• Narcissist: Everything has to center around himself, everything else comes second. When his concerned fiancée Susan came to him for help, his only concern was that she would embarrass him and ruin his career for being a monster.
• Never My Fault: When wanting to "reconcile" with Susan, he tells her that "he forgives her" for ruining their relationship, which he callously called off in the first place.
• Small Name, Big Ego: His name is small but he carries an extremely huge ego when it comes to reporting news and drawing attention to himself.

Carl and Wendy Murphy

Carl Murphy

Wendy Murphy

Voiced by: Jeffrey Tambor and Julie White.

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• Generation Xerox: Susan looks like an identical younger version of her mother Wendy.
• Open-Minded Parent: Unlike the other humans who are terrified of Susan in her super-form, they aren't terrified of her when they reunited with and tell her they still love her no matter what.
• Satellite Family Member: There is not much to them other than being Susan’s parents.

Ms. Ronson

Voiced by: Latifa Ouaou

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• Expy: Of Dana Scully.
• Screaming Woman: She's terrified of footage of the first four monsters and she screams in terror when General Monger says the monster's name. Thankfully, the General manages someone to get her out of the war room, only for the President to scream identically when he says Ginormica's name.
• What Happened to the Mouse?: She only appears in one scene screaming at the first four monsters and she had no dialogue (unless you probably count one or more deleted scenes with her).

Introduced in the TV series

Coverton

Voiced by: Jeff Bennett

Coverton is a psychokinetic alien who is the main antagonist of the TV series, he uses a floating chair for transportation.

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• Bad Liar: So bad at lying that even B.O.B. isn't fooled by it.
• Big Bad: The most recurring antagonist of the TV series; he frequently causes problems in the base that the monsters have to solve.
• Butt-Monkey: To a higher level. He suffers more slapstick than Susan.
• Charlie Brown Baldness: He has a very thin layer of his alien species' equivalent of hair.
• Cool Chair: Has a hover chair to compensate for Earth's gravity. It also contain a variety of weapons.
• Fan Disservice: Sometimes ends up in only tighty-whities (or even nude) and yikes. It's so terrifying that in one episode the group keeps erasing their memories just to forget having seen it.
• Killer Teddy Bear: He has a stuffed bear that's made to hunt down whoever is deemed the leader. It'd be funny if the toy wasn't armed with lasers, electric whips, and rockets.
• Manipulative Bastard: He occasionally convinces B.O.B. to help him in his schemes. He's even done the same with Sqweep at least thrice.
• Mind over Matter: Possesses powerful telekinesis.
• The Mole: He's on Earth to prepare it for invasion, though he's not very good at keeping it secret, often blurting it out in frustration and having to backtrack.
• The Rival: To Susan as the leaders of their respective teams.
• Smug Snake: Clearly thinks of himself as better than anyone else, and the only times he isn't openly acting as such are when he's trying to manipulate someone.
• Token Evil Teammate: The only member of Team Alien with a truly malicious agenda.

Sqweep

Voiced by: Haley Tju

Sqweep is an adorable, intelligent alien child who has come to Earth because she needs to write a report on Earth's dominant species for school. She's rarely referred to with pronouns, but Monger calls her "Miss Sqweep" and B.O.B. calls her a "she" at the beginning of the episode "Number Seven!".

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• Bizarre Alien Biology: Sqweep's species have a dangerous type of body waste disposal called Number 7 and need a special toilet to handle it.
• Color-Coded Emotions: The tips of her antennae tend to glow when she expresses a strong emotion: Green for Happiness/Joy, Yellow for Fear/Anxiety, Red for Anger/Aggression, and Purple for Sadness/Confusion.
• Innocent Prodigy: Highly intelligent, but not the best with understanding people.
• Insufferable Genius: She doesn't mean to, but sometimes she can be condescending when it comes to explaining things to the others.
• Intergenerational Friendship: With Link, Sqweep being 700+ years old (but mentally still a child) and Link being millions of years old (biologically at least, considering he was frozen in ice for centuries before unfreezing).
• Nice Girl: Sqweep is a real sweetheart and any conflict she causes is purely accidental.
• Really 700 Years Old: As revealed in "The Friend Who Wasn't There", Sqweep is 768.
• Ridiculously Cute Critter: She's an adorable little alien.
• The Rival: To Dr. Cockroach in intelligence.
• Shorter Means Smarter: The smartest of Team Alien in addition to being the shortest.
• Token Good Teammate: Sqweep is the only member of Team Alien that is not malicious or aggressive, deliberately at least.

Sta'abi

Voiced by: Gillian Jacobs

Sta'abi is a hotheaded female alien from a warrior/hunting culture.

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• Advertised Extra: She's prominently featured in advertising along with the other members of Team Alien, but she only appears in roughly one third of the show's episodes and is fairly minor compared to the likes of Coverton or Sqweep.
• Aliens of London: Sports a thick Russian accent.
• Don't You Dare Pity Me!: Her warrior pride dictates that being told "sorry" is a grave insult. It suggests that her feelings are so fragile as to need comforting, and thus weakness.
• Green-Skinned Space Babe: Well, she has yellow skin. Still a hottie.
• Hartman Hips: Despite being an alien, she sports a curvaceous figure.
• Jerkass: Sta'abi acts like a hotheaded jerk to everyone, whether they be monsters or aliens. Vornicarn is the only one to escape her wrath.
• Large Ham: Rarely does an episode go by without her doing her bombastic "STA'ABI!" chant.
• No Social Skills: As Susan notes during "Vornicarn", Sta'abi's social skills leave a lot to be desired, considering her first instinct is to viciously beat whoever she interacts with.
• Proud Warrior Race Guy: An alien who wholeheartedly binds herself to her warrior traditions no matter what.
• Punny Name: Susan and Link often mispronounce her name as "Stabby".
• The Rival: To Link, as both are the muscle of their respective teams.
• The Smurfette Principle: The only member of Team Alien to be definitively female.

Vornicarn

Voiced by: Fred Tatasciore

A rambunctious semi-sentient alien, Vornicarn hatched on Earth and briefly incubated inside Link's nose before emerging, rampaging around Area Fifty-Something until Sta'abi captured and tamed him to be her loyal hunting companion.

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• Advertised Extra: Even moreso than Sta'abi; Vornicarn barely appears past its debut episode - being a barely sapient alien dog - and rarely gets any focus despite appearing in the show's opening sequence.
• All Animals Are Dogs: A purple alien dog to be exact.
• The Rival: To B.O.B. as they're both not the brightest of their respective teams.
• Satellite Character: He doesn't have much characterization beyond being Sta'abi's pet. There are several episodes where Sta'abi appears without Vornicarn, but only one episode ("It Came from Channel 5") where Vornicarn appears without Sta'abi.
• Team Pet: For Team Alien.

Rule-bot 9000

Voiced by: James Urbaniak

General Monger had the robot built during the cold-war to run the planet in the event of a nuclear holocaust, with said event having never come to past the robot was put into storage for nearly 70 years.

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• Advanced Tech 2000: Used in its name: the Rule-bot 9000.
• A.I. Is a Crapshoot: It's a robot with artificial intelligence, and quickly went crazy.
• Lawful Stupid: Cites rule violations but had no way to enforce them until hooking up with Coverton's chair.
• Logic Bomb: How it was defeated the first time. It fixed that problem the next time he appeared.
• Mind-Control Device: Gained these in his second appearance.
• Weaksauce Weakness: Was defeated another time by getting wet by Bob.

Dr. Cutter

Voiced by: Amy Sedaris

Dr. Cutter is a mad scientist who arrives at Area Fifty-Something, to upgrade the base's technology. However she reveals that she has a secret agenda to dissect Coverton's brain to learn the secrets to telekinesis.

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• Ax-Crazy: She's very clearly insane and takes sadistic glee in the idea of dissecting Coverton's brain.
• Comic-Book Fantasy Casting: Cutter's design, voice, personality and pandering optimism gives Dr. Cutter a mild resemblance to Hillary Clinton.
• Eyepatch of Power: Has a mechanical eye that looks like an eyepatch. It has all sorts of gadgets in it.
• Labcoat of Science and Medicine: A mad, er, glad scientist who wears a lab coat.
• Mad Scientist: She describes herself as more like a "glad scientist"; she's still crazy.
• Meaningful Name: Her surname is "Cutter", and she wants to cut up and study Coverton's brain while he's still alive.
• Put on a Prison Bus: Her first episode ends with her being court-martialled and flown out of the base to prison for trying to dissect Coverton's brain. She escapes a few episodes later.
• We Will Meet Again: She vows vengeance on Susan by the end of her first episode. She does return in "Race to the End...Zone!", but never encounters Susan until the end of the episode.

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