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.

Dial M for Monkey: Magmanamus — Monkey must defend a city from a giant lava creature.

Dexter Dodgeball — Fed up with losing at dodgeball, Dexter builds a robot to play for him.

Dial M for Monkey: Rasslor — Intergalactic wrestling champion Rasslor comes to Earth looking for a new opponent, and challenges all of Earth's superheroes. However, Rasslor refuses to wrestle Monkey due to his size.

Dexter's Rival — Mandark enrolls at Dexter's school, quickly overshadowing Dexter.

Dial M for Monkey: Simion — An intelligent chimpanzee enlists Monkey's 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.

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

Jurassic Pooch — Dexter creates a Tyranosaurus Rex that has the brain and heart of a dog.

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 heads into the one place he fears to go: Dee Dee's room.

Dial M for Monkey: Huntor: The Last & Lost Episode — Monkey must fight for his life against a hunter on a jungle asteroid.

Star Spangled Sidekicks — Dexter and Dee Dee enter the tryouts for Major Glory's sidekick.

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

Babysitter Blues — Unable to win the heart of his babysitter, Dexter ages himself in the hopes of having better luck.

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.

Dollhouse Drama — After Dexter shrinks himself to doll size, he becomes an unwilling character in Dee Dee's doll story.

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

Way of the Dee Dee — Dee Dee tries to get Dexter to loosen up.

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.

Spacecase — To get rid of some aliens, Dexter offers Dee Dee as a test subject.

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

Dexter's Rival — This segment is repeated from the third episode.

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.

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

Beard to Be Feared — 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 switches his brain with a mouse, and must avoid his mother when she decides to exterminate him. A parody of Tom and Jerry.

Chubby Cheese — At the Chubby Cheese pizza restaurant, Dexter wears a Chubby Cheese hat and tries to slow down the Whack The Weasel machine to win a stuffed Monkey doll before Dee Dee does. Chubby Cheese is a parody of Chuck E. Cheese.

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

Hunger Strikes — Dexter uses radiation therapy so he can like vegetables, but the therapy has consequences if Dexter goes too long without them.

The Koos is Loose — Dee Dee's imaginary friend comes to life.

Dee Dee Locks and the Ness Monster — Dexter's mother makes Dexter 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.

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 boots, but can't rid himself of them afterwards.

Labels — Dexter and Dee Dee label everything in the house.

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

Filet of Soul — Dexter and Dee Dee want to give their dead fish a proper burial, but are haunted by spirits of all dead goldfish.

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.

Ewww That's Growth — Tired of his small stature, 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.

A Hard Day's Day — Dexter needs to find a way to move the moon, which is blocking Saturn and its "science waves."

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.

The Justice Friends: 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.

Star Check Unconventional — Dexter and his friends try to escape a doll convention while dressed as "Star Check" characters.

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 Sugar Hanks and Pony Puff fan clubs.

World's Greatest Mom — Dexter gives his mother super powers.

Techno Turtle — Dexter rebuilds Dee Dee's pet turtle.

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

Dee Dee Be Deep — Dee Dee becomes a booming bass 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.

Picture Day — Dexter transforms his face so his picture will look nice.

Now That's a Stretch — Dexter makes himself stretchy using bubble gum, only to have Dee Dee decide to chew on him.

Don't Be a Baby — Dexter tries to make himself and Dee Dee older, but makes everyone else younger instead.

Dial M for Monkey: Peltra — Peltra wants Monkey's coat.

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

Koos a la Goop a Goop — Dee Dee enters the land of her imaginary friend.

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

Dee Dee's Tail — Dee Dee complains that she's tired of just pretending to be a Pony Puff Princess, so Dexter turns her into one.

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 gives his Labrador Retriever a way to speak English.

Coupon for Craziness — Dexter gets traded with an average child who has scientist parents.

Critical Gas — Dexter thinks 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.

Rushmore Rumble — Dexter and Mandark bring the Abraham Lincoln and George Washington faces on Mount Rushmore to life

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

Aye Aye Eyes — A little girl with big eyes follows Dexter everywhere after he returns a doll 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.

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).

The Old Switcharooms — Dexter's father makes him and Dee Dee stay in each other's rooms as punishment for running into him (then his bowling trophy breaks), leaving Dexter to worry about the fate of his lab.

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

Accent You Hate — A school bully picks on Dexter because of the way he talks.

Dad is Disturbed — Dexter's father tries to watch a golf tournament.

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

DiM — Dexter deals with the annoyances of the hardware superstore to get a light bulb.

Just an Old Fashioned Lab Song... — Dexter takes piano lessons, discovering he has more musical aptitude than he thought.

Sdrawkcab — 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.

Big Bots — Dexter and Dee Dee, using their giant robots, try to save an island's population from being destroyed by a volcano. However, they keep getting in each other's way.

Gooey Aliens That Control Your Mind — Dexter's parents and 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 Astronominoff (or "Lalavava"), tries to upstage Dee Dee at dance school. To help their sisters, Dexter and Mandark build the two girls dancing mechanoids.

Pslightly 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! — The premise of this short is that it was written and animated by a six-year-old boy. The story follows Dexter and Mandark's robot "brother", Computress teaming up to make Mandark's head shrink.

The Justice Friends: Pain in the Mouth — Krunk gets a tortilla chip stuck in his tooth, and Major Glory decides to pull it out himself.

Dyno-Might — Blue Falcon asks Dexter to fix Dyno-Mutt, but Dexter's improvements turn Dyno-Mutt into a killing machine.

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

A Dad Cartoon — Dad decides to give the car a retouch.

Mind Over Chatter — Dexter accidentally gives himself telepathy that he can't shut off when trying to overhear his father's thoughts..

A Quackor Cartoon — Quackor returns to battle Monkey in Dexter's Lab.

Copping an Aptitude — Dexter's school and parents decide to send him to college. Though Dexter is happy to be there, college turns out to be a bad influence on him.

A Failed Lab Experiment — Dexter's new device, made to help him see through solid objects, fails to work as expected.

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

A Mom Cartoon — Dexter's mother 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.

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.

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

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

Glove at First Sight — Dexter's parents remember their first meaning.

A Mom & Dad Cartoon — Dexter and Dee Dee listen in on their parents' conversation.

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

Another 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 Koz from disappearing.

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

A Mom Cartoon — This short repeats from episode 56.

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 mess with his head.

Sis-Tem Error — Dee Dee accidentally shuts down Dexter's laboratory, and tries to hide the fact from him.

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.

Dexter's Little Dilemma — Dexter accidentally shrinks his parents, so he puts them into a model of their house. however, the house is incomplete, so Dexter has to unshrink them before they figure that out.

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

Head Band — Dee Dee has a song stuck in her head.

Stuffed Animal House — Dee Dee's stuffed animals come to life and roam the house.

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 do 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.

In Dexter's Laboratory opening, Mandark turns on new opening Mandark's Laboratory. Babe Sitter — Dee Dee is hired by Mandark's parents to babysit him.

Mountain Mandark — Mandark gets in touch with nature.

2Geniuses 2Gether 4Ever — Dexter decides to work with Mandark, but finds himself doing all the work. (Dexter's Laboratory Opening it's return on the final episode of the Season 4 episode 13c)

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.

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.

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

Chicken Scratch — Dexter gets the chicken pox, and his attempted remedies to cure it fail miserably.

Tee Party — Dexter and his father enter a golf tournament, but Dexter's father proves inept at the sport. Dexter decides to help with a remote controlled golf ball.

They Got Chops — When Dee Dee's Judo skills prove too much for Dexter, Dexter learns how to fight back.

Poetic Injustice — Dexter falls in love with a new girl at his school, but can't win her heart. He makes a deal with Dee Dee to have her write poems for him, but it starts to get on her nerves.

When Dexter is attacked by Robots hunting "The one who saved the future", he becomes fascinated by the possibility of what he will be in several years time, taking the Time Machine.