List of Dexter's Laboratory episodes

Dee-Deemensional — When Dexter falls victim to a terrifying creature brought forth by his latest invention, Dee-Dee goes back in time to warn him, but Dexter proves to be hard to convince.

Dial M for Monkey: Magmanamus — Monkey must defend a city from a giant lava creature, Magmanamus (Brad Garrett), who only wants the entire world to be quiet so he can get some sleep (for a few centuries).

Dexter Dodgeball — Dexter trieds to excuse himself out of P.E. with a fake note, but the new coach does not accept it so Dexter is forced to play dodgeball and endure torment from three bullies.

The word "Crap" (which is used in the original broadcast) was muted in some Cartoon Network and Boomerang reruns. However in recent showings, and on the DVD release, the episode remains uncensored.

Dexter faces three bullies that sort of resemble the bullies from The Simpsons

Bully 1: is tall and skinny in a stalking cap just like Jimbo Jones (he also resembles Dolph Starbeam, he has his eyes often covered with his stalking cap, while Dolph has one eye often covered with his hair)

Bully 2: has a shaved head just like Kearney Zzyzwicz

Bully 3: resembles Nelson Muntz, at one point, he laughs "Ya Ha" as Nelson laughs "Ha Ha" (but he also resembles Dolph by being the third member with hair)

Dial M for Monkey: Rasslor — Intergalactic wrestling champion Rasslor ("Macho Man" Randy Savage) comes to Earth looking for a new opponent, and challenges all of Earth's superheroes, if no one can beat him he will destroy earth. However, Rasslor refuses to wrestle Monkey due to his size. This also marks the first appearance of the Justice Friends.

Dexter's Rival — Mandark enrolls at Dexter's school, quickly overshadowing Dexter and forces him to shut down his lab to add more power to his own lab. Dexter and Dee-Dee hatch a plan to get revenge on him.

Dial M for Monkey: Simion — An intelligent chimpanzee (Maurice LaMarche) tries to enlist Monkey in getting revenge on the humans who created him.

Double Trouble — In order to rid himself of Dee-Dee, Dexter clones himself. However, Dee-Dee, and her friends, Mee-Mee and Lee-Lee do the same several times, causing havoc.

Dial M for Monkey: Barbequor — Monkey's birthday is interrupted by Barbequor, a villain who wants to roast Earth for his next meal.

This episode was banned from airing in America shortly after its initial airing, due to featuring a character called the Silver Spooner (a parody of the Silver Surfer) that stereotyped gay men. It has been replaced in subsequent airings and the DVD release with Dexter's Lab: A Story.

Jurassic Pooch — Dexter uses his dog's brain and heart for a Tyrannosaurus rex, and Dee-Dee makes him her pet, despite Dexter's efforts to convince her that its a dinosaur.

Dial M for Monkey: Orgon Grindor — A space creature with an Italian accent takes over Monkey's mind during his date with Agent Honeydew.

Dee-Dee's Room — To find his missing invention, Dexter dons a clean suit heads into the one place he fears most: Dee-Dee's room.

Dial M for Monkey: Huntor — Monkey must fight for his life against a hunter on a jungle asteroid.

Star Spangled Sidekicks — Dexter and Dee-Dee enter tryouts to become Major Glory's sidekick, but they soon realise that fancy costumes are not the only requirement.

The Justice Friends: TV Super Pals — Krunk, Valhallen, and Major Glory have trouble deciding what to watch on TV.

Babysitter Blues - Dexter tries everything to win the heart of his much older babysitter, even sabotaging her relationship with her boyfriend and accelerating his age.

The Justice Friends: Valhallen's Room — When Valhallen loses his magic "axe" and starts to transform into a geek, Krunk and Major Glory venture into his room to find it.

Doll House Drama — After Dexter shrinks himself to doll size, he becomes an unwilling character in Dee-Dee's doll story. Due to a side effect of shrinking, he starts to confuse fantasy with reality, and starts to believe the story is real.

The Justice Friends: Krunk's Date — Krunk gets a crush on She-Thing.

Way Of The Dee-Dee - After Dee-Dee talks about Dexter's lonely lifestyle, he asks her to teach him the "Way Of The Dee-Dee", only to become more like Dee-Dee than he had estimated.

The Justice Friends: Say Uncle Sam — Major Glory's uncle, Sam, is about to pay a visit, but the apartment's in no shape for company.

Space Case — To get rid of some aliens, Dexter offers Dee-Dee as a test subject tricking her into thinking they're going to Candy Land, but soon begins to realise how much he loves his sister.

The Justice Friends: Ratman — While trying to fix the furnace, the Justice Friends find Ratman living in their basement.

Dexter's Rival is repeated as the first segment in this episode (although it's taken out on the DVD release).

The Justice Friends: Bee Where? — Major Glory is unnerved by a bee in the apartment.

Inflata Dee-Dee — Dee-Dee tries on Dexter's inflatable suit, and is swept away on the wind, leaving it up to Dexter to save her.

The Justice Friends: Can't Nap — Valhallen invites White Tiger to the apartment, forgetting that Major Glory is allergic to cats.

The Beard To Be Feared — After a fright from Dee-Dee, Dexter lays down in the beard growing machine and tries to grow a beard like his hero, Action Hank.

Quackor The Fowl — Mandark doesn't know that his pet duck is really Quackor the Fowl, Monkey's rival. Quackor overhears Mandark talking in his sleep about destroying Dexter's lab and tries to do it, unaware that Monkey is Dexter's pet.

Mom And Jerry — Dexter accidentally switches his brain with a mouse, and must avoid his mother when she decides to exterminate him. As the title suggests, this short parodies classic cat & mouse animated subjects such as Tom and Jerry.

Chubby Cheese — At the Chubby Cheese pizza restaurant, Dexter tries to slow down the Whack The Weasel machine to win a stuffed Monkey doll before Dee-Dee does. But he gets captured by security for tampering with the machine, and falls into the hands of a mad scientist who seeks to use him as his assistant.

D & DD — When Dexter's friends tire of the complicated traps he sets up as Lab Master, they put Dee-Dee in charge for a change of pace.

Hunger Strikes — Dexter uses radiation therapy so he can like vegetables, but with a severe side-effect if he goes too long without them.

The Koos Is Loose — Dee-Dee's imaginary friend, Koosalagoopagoop (Dom DeLuise), comes to life and annoys Dexter. Koosalagoopagoop later makes a cameo appearence in The Powerpuff Girls episode "Imaginary Fiend".

Dee-Dee Locks And The Ness Monster — Dexter's mother forces Dexter to read to Dee-Dee when she's sick, but she makes up her own story after being bored by Dexter's story.

Backfire — Dexter fuses Dee-Dee with the family car by accident, causing mayhem.

Sister's Got A Brand New Bag — Dee-Dee's new dance annoys Dexter to no end.

Shoo, Shoe Gnomes — Dexter calls upon the "shoe gnomes" to repair his shoes, but can't rid himself of them afterwards.

Labels — Dee-Dee starts to take anything that belongs to Dexter, claiming that it "doesn't have his name on it." He invents a label-making gun to make sure his things do.

Game Show — Dexter and Dee-Dee compete against each other on a car show.

Filet Of Soul — Dexter and Dee-Dee don't want to give their dead fish a proper burial, but are haunted by spirits of him when they don't.

Golden Diskette — Dee-Dee finds a "golden diskette" allowing her and Dexter to enter Professor Hawk's computer factory.

Snowdown — When Dee-Dee's snowball skills outclass Dexter, their father trains him to be the snowball terror he was at their age.

*figure not included — Dexter can't join his local Major Glory gang because he doesn't have an action figure, so he makes his own. But he learns an important lesson about how his friends should treat him.

Ewww That's Growth — Tired of his small stature after he can't get on a roller coaster, Dexter makes himself taller.

Nuclear Confusion — Dee-Dee hides the power core to Dexter's nuclear lamp, and he must decipher her clues before it explodes, destroying the earth with it.

A Hard Day's Day — Dexter needs to find a way to move the moon, which is blocking Saturn and its "science waves" (which is what makes it a "good day for science.")

Road Rash — Dexter's parents get him a bike for exercise, but he's unable to catch Dee-Dee on her inline skates.

The Bus Boy — A couple of girls knock Dexter's pencil into the deep, dark back of the bus, which legend says no one returns from.

Things That Go Bonk In The Night — After a Puppet Pals marathon, Krunk dreams the Puppet Pals are attacking puppet versions of Major Glory and Valhallen.

Sassy Come Home — Dexter hunts for Sasquatch, who befriends Dee-Dee because of her similarly huge feet.

Star Check Unconventional — Dexter and his friends try to escape a Darbie doll convention where they arrived because they weren't paying attention to were they were going, while dressed as "Star Check" characters, a parody of Star Trek.

Dexter Is Dirty — Tired of bathing, Dexter laminates himself to keep himself clean.

Decode Of Honor — Dexter and Dee-Dee's secret decoder rings hold the keys to joining the Action Hanks and Pony Puff fan clubs but the clues don't seem right.

World's Greatest Mom — Dexter accidentally gives his mother super powers, when she is hit with a ray of energy. She doesn't even notice she has superpowers, but acts like a superhero.

Techno Turtle — Dexter rebuilds an injured turtle Dee-Dee befriends.

Surprise! — In order to see his birthday presents, Dexter turns himself invisible.

Dee Dee Be Deep — Dee-Dee becomes a booming baritone after Dexter attempts to "improve" her singing.

911 — When an Action Hank episode is interrupted by the Emergency Broadcast System, Dexter travels around the world to solve the problem.

Unfortunate Cookie — Dexter and Dee-Dee are stuck together by a Chinese finger trap and must travel to Chinatown to free themselves.

Picture Day — Dexter transforms his face so his picture will look nice, by molding a handsome face out of wax.

Now That's A Stretch — Dexter makes himself stretchy using a machine to turn himself into bubble gum.

Don't Be A Baby — Dexter tries to make himself and Dee-Dee older in order to see an R-rated movie, but makes everybody (except for Dexter and Dee-Dee) babies instead.

Peltra — Peltra wants to turn Monkey into a fur coat.

Sports A Poppin' — Dexter's father wants to teach Dexter some sports, but he's not very athletic.

Koosalagoopagoop — Dee-Dee enters the land of her imaginary friend Koosalagoopagoop after he lies to her that he is the king of his land.

Topped Off — Dexter and Dee Dee try coffee after seeing how it energizes their parents and become addicted to it.

Dee-Dee's Tail — Dee Dee complains that she wants a tail, so Dexter turns her into a horse. But everyone tries to take advantage of her.

Sister Mom — Dexter is afraid to bring his mother to see his principal, so he disguises Dee- Dee as her.

Dexter's Lab: A Story — Dexter adopts a Labrador Retriever and gives him a way to speak human language.

Coupon for Craziness — Dexter gets accidentally switched with an average hyperactive child who has scientist parents; neither couple notices.

Critical Gas — Dexter assumes that he only has thirty minutes to live after eating an extra-large burrito.

Let's Save The World You Jerk! — Dexter has to team up with Mandark to prevent asteroids from destroying Earth. They fail due to their arguing, and the asteroids destroy the Earth anyway. Dexter and Mandark continue to fight.

Rushmore Rumble — Dexter and Mandark bring the Abraham Lincoln and George Washington faces on Mount Rushmore to life and make them fight each other.

A Boy And His Bug — When Dexter neglects his pet bug, which he created to devour the things metal that Dee-Dee destroys, it begins eating his lab.

Aye Aye Eyes — A little girl with big eyes falls in love with Dexter and follows him everywhere after he returns a toy she dropped.

Old Flame — Dexter brings the caveman who first discovered fire back from the past.

Don't Be A Hero — Dexter tries to turn himself into a superhero, but discovers that hero work is not all it's cracked up to be. He gives up after every power he tries backfires.

Paper Route Bout — Dee-Dee's paper route is threatened by a team of rogue bicyclists (dressed as ninjas) who cause trouble. This is the first segment where Dexter doesn't appear at all.

The Old Switcharooms — Dexter's father makes him and Dee Dee stay in each other's rooms as punishment for running into him (causing his bowling trophy to break), leaving Dexter to worry about the fate of his lab and Dexter's Dad is made to switchrooms again. Dexter goes to the Doghouse and the family dog goes to Dexter's Lab.

Quiet Riot — Dexter tries to get some sleep, which is complicated by Dee-Dee's counterproductive attempts to make sure he has peace and quiet.

Accent You Hate — A school bully picks on Dexter and his friends because of the way they talk.

Dad Is Disturbed — Dexter's father tries to watch a golf tournament. But he is constantly distracted by his family. Barney Rubble and Betty Rubble make an appearance.

Framed — When Dexter's glasses break, he creates a new trend: cracked glasses.

DiM — Dexter deals with the annoyances of the hardware superstore to get a light bulb. The episode is notable for containing almost no dialog except for the final punchline.

Just An Old Fashioned Lab Song... — Dexter takes piano lessons from "Professor Williams" and gradually Dexter discovers he has more musical aptitude than he thought after Professor Williams discovers his lab. Guest starring Paul Williams as Professor Williams.

Backwards — Dexter invents a belt that makes its wearer do everything backwards, but Dee Dee gets her hands on the directional switch.

The Continuum Of Cartoon Fools — Dexter tries to figure out how Dee Dee keeps getting into his lab every time he sends Dee Dee out of one entrance and seals it.

Big Bots — Dexter and Dee Dee, using their giant robots, try to save an island's population from being destroyed by a volcano.

Gooey Aliens That Control Your Mind — Dexter's parents and sister Dee Dee have their minds taken over by an alien life form that escaped Dexter's lab.

Dee Dee's Rival — Mandark's sister, Olga Astronomonoff (or "Lalavava"), tries to upstage Dee Dee at dance school.

Slightly Psycho — It's Mother's Day, but Dexter's mother can't find her trademark gloves and her family teases her by doing a very poor job trying to clean the house.

Blackfoot And Slim — A nature documentary team observes "Blackfoot" (Dexter) and "Slim" (Dee Dee) in their "natural habitat".

Trapped with A Vengeance — The school janitor plans revenge on Dexter for making him stay late every night until Dexter leaves.

Dexter And Computress Get Mandark! — Written and narrated by a six-and-a-half-year-old boy who won a contest,^[4] the story follows Dexter and Mandark's robot "brother" Computress teaming up with Dexter to make Mandark's head shrink.

Pain In The Mouth — Krunk gets a tortilla chip stuck in his tooth, and Major Glory decides to fix it by pulling the tooth out himself.

Dyno-Might — Blue Falcon asks Dexter to fix Dyno-Mutt, but Dexter instead builds a new Dyno-Mutt that does everything wrong.

Streaky Clean — Dexter creates a satellite to clean stains off of his clothes, but it goes horribly wrong when the satellite is damaged, causing the fabric beneath each stain to be eliminated as well.

A Dad Cartoon — Dad decides to give the car a retouch, but keeps breaking things and saying he'll fix it later. After having enough, he pushes the car over a cliff, and below it are other crushed cars, meaning this wasn't the first time.

Mind Over Chatter — Dexter accidentally gives himself telepathy that he can't shut off when trying to overhear his father's thoughts to figure out what he got for his birthday, causing everyone to read his own mind.

A Quakor Cartoon — Quakor returns to battle Monkey in Dexter's Lab until Quakor lays an egg; then the two fall in love.

Copping an Aptitude — Dexter's school and parents decide to send him to college. He ignores his fellow students, who prefers to "party now, study later", until his mind finally snaps from the workload.

A Failed Lab Experiment — When Dexter's new device, made to help him see through solid objects, fails to work as expected, he ends up seeing through people's clothes.

Poppa Wheely — It's career day and Dexter is ashamed of his father, so he creates a better father.

A Mom Cartoon — Dexter's mom fights another woman at the supermarket for some new gloves.

If Memory Serves — To keep himself from forgetting anything important, Dexter uses a device to copy his memories.

A Mandark Cartoon — Mandark plans another scheme to get rid of Dexter. Everything in this cartoon is to the tune of Mandark's trademark laugh.

A Boy Named Sue — Mandark's origin is revealed.

Dos Boot — Mandark gets inside Dexter's computer system, so Dexter must follow him inside.

A Dee Dee Cartoon — Dee Dee goes and plays in her own "lab" after being kicked out of Dexter's.

That Magic Moment — Dexter's magician uncle pays a visit.

A Silent Cartoon — Dexter is trying to paint his lab blue, but Dee Dee wants to make it pink. (Spoof of The Pink Phink).

Comic Relief — Dexter creates a device to make a life-like superhero comic, with his sister villain "Deestructa".

Another Dad Cartoon — Dexter's father plays golf with his kids.

Glove at First Sight — Dexter's parents remember their first date and dance.

A Mom & Dad Cartoon — Dexter and Dee Dee listen in on their parents' conversation, they are playing Scrabble, but the way they talk makes it sound like Dad was cheating on Mom.

Oh, Brother? — Dexter turns his sister into a boy, but is disappointed when "he" is not as cool as Dexter would like.

A Third Dad Cartoon — With everyone out of the house, Dexter's father decides to spend the time dancing.

Jeepers, Creepers, Where is Peepers? — Dexter and Koos must save Peepers to keep the land of Kooz from disappearing.

Scare Tactics — After watching a horror film, Dexter and his father become easily frightened.

Beau Tie — Dee Dee has a new boyfriend who likes science and Einstein. Unfortunately, when Dexter tries to get the boyfriend, named Beau, to see his stuff, Beau ends up running away from the both of them in fear.

Remember Me — When Dexter gets amnesia, Dee Dee decides to play tricks on him by creating a whole new identity for him.

Sis-Tem Error — Dee Dee accidentally shuts down Dexter's lab.

Bad Cable Manners — Dexter pirates cable for his father.

The Scrying Game — Dee Dee learns a new game that can predict the future.

Monstrosi-Dee Dee — A monster is roaming Dexter's lab, but he doesn't realize that it's actually Dee Dee, under the effects of one of his experiments.

Dexter's Little Dilemma — Dexter shrinks his parents and puts them into a model of their house for observation.

Faux Chapeau — Dexter's newest invention looks like a hat, so Dee Dee takes it and wears it around town.

Head Band — Dee Dee gets a song stuck in her head which is actually a virus. Dexter and Mom soon catch it too.

Stuffed Animal House — Dee Dee's stuffed animals come to life and roam the house when Dee Dee uses a formula that brings inanimate objects to life.

School Girl Crushed — Dexter and Mandark are both outperformed by a new girl at school, so they team up to get rid of her.

Chess Mom — Dexter's mother attempts to support him during a chess tournament but does nothing but embarrass him.

Dexter the Barbarian — Dexter tries to emulate the barbarian hero of his favorite comic book.

Tuber Time — Dexter studies the potato. When he is fascinated by its power to light up a light bulb, tries to use it as an energy source.

In the Dexter's Laboratory opening for this episode, Mandark turns on a new sign reading "Mandark's Laboratory".

Baby Sitter — Dee Dee is hired by Mandark's parents to babysit him.

Mountain Mandark — Mandark gets in touch with nature.

Height Unseen — Again tired of being short, but mindful of his past failures, Dexter decides to make everyone shorter than himself.

Bygone Errors — An elder Dexter talks about the glory days, and his sister is still there to inject her opinions, telling him what really happened.

Voice Over — When Dexter's computer gets laryngitis, Dexter must find a replacement voice.

Blonde Leading the Blonde — Dexter refuses to admit that blondes have more fun, so Dee Dee secretly dyes his hair blond to prove it to him.

Tee Party — Dexter and his father enter a golf tournament, but Dexter's father proves inept at the sport.

The Lab of Tomorrow — Monkey narrates a documentary of the future of laboratories and sciences.

Garage Sale — Dexter creates a device that turns people into hideous blobs. His parents then sell it at a garage sale, where it ends up in Mandark's hands.

Chicken Scratch — Dexter catches the chicken pox, and Dee Dee tells him a ridiculous tale that if he keeps scratching them, he will turn into an evil chicken. His nonstop scratching eventually does just that.

They Got Chops — When Dee Dee's Judo skills prove too much for Dexter, Dexter learns how to fight back from the same dojo she went to.

Poetic Injustice — Dexter falls in love with a new girl at his school, but can't win her heart.

Dexter wants to make himself more perfect by removing all of his rude qualities using a "Rude Extractor". Dee Dee naturally shows up to unintentionally mess up Dexter's plan, causing both of them to be hit with an unstable beam from Dexter's invention. The beam separates them into good and evil halves, and the evil halves promptly knock their good sides unconscious. Immediately the bad halves start cursing at each other and wrecking up Dexter's lab before going to eat lunch. They continue to curse and act rudely until their good sides wake up. The good sides trap their rude counterparts in the lab, and they head downstairs to find their mother with a bar of soap, presumably to wash out her kids' mouths with.

An army of robots comes out of Dexter's time machine, under orders to "destroy the one who saves the future." Believing them to mean him, Dexter travels to the future in order to see this event happen. He is horrified to find himself a wimpy young man, who works designing office cubicles for Mandark, his boss. Dexter convinces his older self that he is a genius who will one day save the future, and they travel to a later time together. Although they arrive in a scientific utopia, they find that the Dexter in this period is a doddering old man who can barely remember anything he has ever done. Backing up a few years, the three Dexters discover the world has fallen into ruin, and the inhabitants are extremely stupid. The Dexter in this time is a muscular hero, who reveals that Mandark stole his most prized invention, the Neurotomic Protocore (which Wimpy Dexter left in his cubicle). However, Mandark did not use the core correctly and corrupted its energies, causing the widespread stupidity and allowing him to forbid technology to all but himself. All four of them team up to bring down Mandark, using the laboratory to build a large robot to storm Mandark's castle. When they arrive to confront Mandark, he summons his counterparts from the time period of each Dexter. At the climax of the battle, Dee Dee appears from the time machine and is revealed to be the one who saves the future. In a jealous rage, the Dexters build the army of robots seen at the beginning of the film to destroy her. As the original Dexter returns to his own time, he realizes he has completed the cycle of events. However, tired of the whole ordeal, he decides to forget it and have a snack.