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Dexter's Laboratory

Seasons: 4
Episodes: 79
User ratings: 38,022
Average rating: 7.9

Animation, Comedy, Family, Sci-Fi

The misadventures of a boy genius and his annoying sister.

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Season 1

Season 2

Season 3

Season 4


Episodes details table

Deedeemensional/Dial M for Monkey: Magmanamus/Maternal Combat
In "Deedeemensional", Dee Dee time-travels to save Dexter from a monster. In "Magmanamus", Monkey goes up against a lava being that dislikes human-caused noise. In "Maternal Combat", when his mother falls, Dexter creates a robot mom to substitute for her.
User ratings: 129
Average rating: 7.7
Dexter Dodgeball/Dial M for Monkey: Rasslor/Dexter's Assistant
After repeated pummeling in the Gym class dodgeball game, Dexter arrives for class ready for action encased in an Armored Cyber-Sonic Exo-Jock Jumpsuit.
User ratings: 116
Average rating: 7.9
Dexter's Rival/Dial M for Monkey: Simion/Old Man Dexter
Boy genius Dexter wants to stay up and watch the 8 o'clock movie with his family, but his mother says he's not old enough. Using one of his inventions makes himself older, but maybe he's made himself a little too old.
User ratings: 109
Average rating: 8.0
Double Trouble/Dial M for Monkey: Barbequor/Changes
Dexter and his cloning machine overheat when Dee Dee and her friends clone and re-clone themselves for Laboratory fun-time.
User ratings: 94
Average rating: 7.3
Jurassic Pooch/Dial M for Monkey: Orgon Grindor/Dimwit Dexter
After regenerating a Tyrannosaurus Rex using some puppy-dog DNA, Dexter must recapture the dinosaur-doggie beast when Dee Dee decides to take it for a walk in the park.
User ratings: 93
Average rating: 7.2
Dee Dee's Room/Dial M for Monkey: Huntor/The Big Sister
In "Dee Dee's Room", Dexter loses something of his and must go into Dee Dee's room to retrieve it. In "Huntor", Monkey finds himself stalked by an alien hunter. In "The Big Sister", Dee Dee eats one of Dexter's experimental cookies and becomes a giant.
User ratings: 96
Average rating: 7.3
Star Spangled Sidekicks/The Justice Friends: TV Super Pals/Game Over
Dexter and Dee Dee audition to be Major Glory's sidekick; The Infragable Krunk wants to watch his favorite TV show; Dexter is trapped inside a video game.
User ratings: 97
Average rating: 7.5
Babysitter Blues/The Justice Friends: Valhallen's Room/Dream Machine
Dexter is in love with his babysitter, Lisa.
User ratings: 85
Average rating: 7.4
Dollhouse Drama/The Justice Friends: Krunk's Date/The Big Cheese
Spying through Dee Dee's bedroom keyhole, Dexter thinks she is plotting against him.
User ratings: 105
Average rating: 7.8
Way of the Dee Dee/The Justice Friends: Say Uncle Sam/Tribe Called Girl
When Dee Dee accuses Dexter of not knowing how to live in the outside world - and only in his lab, he asks her to show him the Dee Dee way of knowledge.
User ratings: 91
Average rating: 7.5
Spacecase/The Justice Friends: Ratman/Dexter's Debt
In "Space Case", Dexter hands off Dee Dee to invading aliens, only to become so overcome with guilt that he decides to save her. In "Ratman", the Justice Friends discover that a vigilante raised by rats has been living in their basement the whole time. In "Dexter's Debt", Dexter owes a huge debt to NASA and must find some way to pay it.
User ratings: 84
Average rating: 7.4
Dexter's Rival/The Justice Friends: Bee Where?/Mandarker
The new kid in school, Mandark, steals Dexter's spotlight and his ego when he find Mandark has a bigger and better laboratory.
User ratings: 82
Average rating: 7.5
Inflata Dee Dee/The Justice Friends: Can't Nap/Monstory
Dee Dee dances into Dexter's Laboratory, puts on Dexter's inflatable suit, floats up above him and taunts him.
User ratings: 81
Average rating: 7.1
Rude Removal
Dexter feels that DeeDee's rudeness is becoming a restriction, so he decides to use a device on her than renders her polite and charming, however, the device goes awry, and it separates Dee-Dee into a good polite half and a bad rude half. The rude half swears and does other bad things and Dexter must fix DeeDee before the rude half does something really bad.
User ratings: 185
Average rating: 8.2
Beard to Be Feared/Quackor the Fowl/Ant Pants
Dexter decides to emulate his hero, Action Hank, and grow a synthetic beard to make himself more rugged.
User ratings: 77
Average rating: 7.6
Mom and Jerry/Chubby Cheese/That Crazy Robot
When Dexter's brain transplant experiment goes awry, his brain is switched with that of a mouse.
User ratings: 77
Average rating: 6.8
D & DD/Hamhocks and Armlocks
"D & DD" Dee Dee wants to play Monsters & Mazes with Dexter and his friends. Against Dexter's wishes, she is made the game master! Dexter is relegated to a secondary character, but his friends have a great time in Dee Dee's world. "Ham Hocks n' Arm Locks" While on a road trip, car trouble forces Dexter and his family to pull into a truck stop. When Earl, a local arm wrestling champ, gets Dad angry, they decide to have an arm wrestling contest. Knowing Dad has no chance of winning, Dexter comes up with a technological way to make Dad stronger.
User ratings: 76
Average rating: 7.4
Hunger Strikes/The Koos Is Loose/Morning Stretch
Dexter is denied dessert when he doesn't finish his vegetables. He decides to use gamma radiation to alter his tastebuds.
User ratings: 74
Average rating: 7.2
Dee Dee Locks and the Ness Monster/Backfire/Book 'Em
Dexter tries to entertain his ill sister by reading to her out of his science text. Bored by protons and neutrons, Dee Dee uses her imagination to make up a story of her own.
User ratings: 72
Average rating: 7.1
Sister's Got a Brand New Bag/Shoo, Shoe Gnomes/Lab of the Lost
Dee Dee sees Big Daddy Fat doing a new dance on "Groove Train" and has to learn it.
User ratings: 69
Average rating: 7.2
Labels/Game Show/Fantastic Boyage
During a fight with his sister over the chair in front of the TV, Dexter gets the idea to start labeling his things.
User ratings: 67
Average rating: 7.3
Filet of Soul/Golden Diskette
"Filet of Soul": Dexter and Dee Dee are haunted by the ghost of a dead goldfish. "Golden Diskette": Dexter obsessed with finding a golden diskette to get a unprecedented tour of an eccentric inventor's mysterious factory.
User ratings: 83
Average rating: 7.5
Snowdown/*Figure Not Included/Mock 5
Dee Dee keeps pelting Dexter with snowballs.
User ratings: 89
Average rating: 7.7
Ewww That's Growth/Nuclear Confusion/Germ Warfare
When the whole family goes to the carnival, Dexter can't go on a ride because he's too short. Using his lab, he makes himself grow taller, but can't stop.
User ratings: 65
Average rating: 7.0
A Hard Day's Day/Road Rash/Ocean Commotion
In "A HARD DAY'S DAY", every day is a fine day for science until things take a turn for the worse thanks to the position of the stars in the sky. In "ROAD RASH", Dexter's mom forces Dexter to go outside and ride a bike, with Dee Dee challenging him to catch her on her roller blades, resulting in a chase similar to one between Wile E. Coyote and the Road Runner. In "OCEAN COMMOTION", on a visit to the beach, Dee Dee (dressed in a mermaid bathing suit) gets kidnapped by some manic seafarin' sailors and Dexter vows to save her.
User ratings: 74
Average rating: 7.0
The Bus Boy/The Justice Friends: Things That Go Bonk in the Night/Ol' McDexter
When Dexter is harassed by two bullies and forced to go into the back of a school bus chasing his #2 writing implement, he must brave the legend of little Billy Blumberg who disappeared back there years ago.
User ratings: 73
Average rating: 7.3
Sassy Come Home/Photo Finish
While vacationing in the woods with his family, Dexter finds Sasquatch tracks and hopes to photograph the mythical beast.
User ratings: 77
Average rating: 7.4
Star Check Unconventional/Dexter Is Dirty/Ice Cream Scream
In "STAR CHECK UNCONVENTIONAL", Dexter and two friends are on their way to the Star Check convention, only to not wind up exactly where they wanted. In "DEXTER IS DIRTY", Dexter will do anything to avoid bathing forever... even laminate himself. In "ICE CREAM SCREAM", Dexter tries to get the ice cream vendor to stop to allow him to get some ice cream, but the vendor isn't too keen on doing that.
User ratings: 80
Average rating: 7.2
Decode of Honor/World's Greatest Mom/Ultrajerk 2000
When Dexter and Dee Dee get their Action Hank and Pony Puffs decoder rings mixed up (respectively), each goes through the other's initiation.
User ratings: 71
Average rating: 7.2
Techno Turtle/Surprise!/Got Your Goat
When Dee Dee rescues a wounded turtle from a hawk's talons, Dexter helps rebuild the little shelled animal into a bionic powerhouse.
User ratings: 73
Average rating: 7.1
Dee Dee Be Deep/911/Down in the Dumps
Dee Dee wants to join the choir, but her bad singing is making it impossible for Dexter to work.
User ratings: 71
Average rating: 7.0
Unfortunate Cookie/The Muffin King
Dexter and Dee Dee get stuck together by a Chinese Finger Puzzle, they track it to its maker in Chinatown, USA.
User ratings: 93
Average rating: 7.7
Picture Day/Now That's a Stretch/Dexter Detention
It's picture day at school and Dexter must face the truth: he is not photogenic. Using Dee Dee's Teen magazine as a guide for restructuring his physical appearance, Dexter becomes grotesquely handsome.
User ratings: 73
Average rating: 7.0
Don't Be a Baby/Dial M for Monkey: Peltra/G.I.R.L. Squad
Being too young to watch an R-rated movie, Dexter tries to make Dee Dee and himself older than Mom and Dad.
User ratings: 69
Average rating: 7.1
Sports-a-Poppin'/Koos a la Goop a Goop/Project Dee Dee
"Dad tries to teach Dexter a sport, like all the other fathers and sons. But Dexter is just horrible at every sport - from baseball to football, soccer to badminton, Dexter stinks!
User ratings: 77
Average rating: 6.9
Topped Off/Dee Dee's Tail/No Power Trip
When Dexter has to have a "parent-principal" meeting at school, the boy genius is distraught. He's never been in trouble so how can he disappoint his parents now?
User ratings: 72
Average rating: 6.8
Sister Mom/The Laughing
"Sister Mom": Dexter is so worried about something bad he did at school that, when his mother is called on it, he has Dee Dee turned into their mother instead. "The Laughing": Dexter is accidentally bitten by a clown and turns into one himself at night.
User ratings: 72
Average rating: 6.9
Dexter's Lab: A Story/Coupon for Craziness/Better Off Wet
When Dexter takes in a lost Labrador Retriever, he decides to enable the dog to talk.
User ratings: 75
Average rating: 7.1
Critical Gas/Let's Save the World You Jerk!/Average Joe
Dexter wolfs down a burrito and suddenly feels a growing pain inside. After having his computer analyze the pain, Dexter thinks he's going to explode.
User ratings: 70
Average rating: 7.0
Rushmore Rumble/A Boy and His Bug/You Vegetabelieve It!
Mandark and Dexter battle each other with Rushmore Presidents Washington and Lincoln brought to life. / Dexter has a metal eating termite named Timmy as a pet. / Dee Dee uses way too much of Dexter's super growth formula in the backyard and turns the plants into man eating monsters.
User ratings: 78
Average rating: 6.9
Aye Aye Eyes/Dee Dee and the Man
When Dexter returns a little girl's stuffed bunny to her, she falls in love with him. She is soon stalking Dexter. With the help of Dee Dee, Dexter is eventually able to divert the girl's affections toward another little boy.
User ratings: 69
Average rating: 7.3
Old Flame/Don't Be a Hero/My Favorite Martian
Dexter wants to meet the original genius who invented fire and zips back in time. He grabs the unsuspecting and frightened caveman and brings him back to the lab.
User ratings: 69
Average rating: 7.2
Paper Route Bout/The Old Switcharooms/Trick or Treehouse
'Paper Route Bout": Dee Dee starts a paper route, but finds herself up against some ninjas. "The Old Switcharooms': after they destroy their father's bowling trophy, he sends Dexter and Dee Dee to each other's rooms. 'Trick or Treehouse': Dee Dee builds herself a treehouse and Dexter is anxious to know what's going on.
User ratings: 77
Average rating: 6.9
Quiet Riot/Accent You Hate/Catch of the Day
When a bully who hates kids with funny accents sets his sights on Dexter, the boy genius has until 3:00 before he receives an after-school beating.
User ratings: 69
Average rating: 7.1
Dad Is Disturbed/Framed/That's Using Your Head
Dad tries to watch a golf game but is constantly interrupted; Dexter gains popularity with broken glasses; Dexter brings home an eccentric man with a lot of electronics on his head.
User ratings: 67
Average rating: 7.1
DiM/Just an Old Fashioned Lab Song.../Repairanoid
While Dexter is working in his lab, one of the light bulbs burns out. Mom takes him to a giant hardware store in an exhausting journey to replace it.
User ratings: 79
Average rating: 7.5
Sdrawkcab/The Continuum of Cartoon Fools/Sun, Surf, and Science
Dexter develops a reverse belt. While wearing the belt to get a snack in the kitchen, Dee Dee sneaks into the lab to play with the belt controls.
User ratings: 72
Average rating: 7.0
Big Bots/Gooey Aliens That Control Your Mind/Misplaced in Space
Dexter builds Dee Dee a huge robot after she tells him he can't. The problem begins when they use their robots to try to save a volcanic island from eruption.
User ratings: 73
Average rating: 7.2
Dee Dee's Rival/Pslyghtly Psycho/Game for a Game
In an episode that mirrors "Dexter's Rival," Dee Dee goes head to head with the new student in her dance class, Olga - Mandark's sister.
User ratings: 73
Average rating: 7.2
Blackfoot and Slim/Trapped with a Vengeance/The Parrot Trap
Dexter and Dee Dee are unknowingly the focus of a "Wild Kingdom" type animal documentary. During Dexter's bathing ritual, he realizes he's being observed, runs, gets tranquilized, and upon awakening discovers he's been tagged.
User ratings: 82
Average rating: 7.4
Dexter and Computress Get Mandark!/The Justice Friends: Pain in the Mouth/Dexter vs. Santa's Claws
Dee Dee uses the lab computer to send her wish list to Santa Claus, but Dexter mocks her because he doesn't believe in the Santa.
User ratings: 106
Average rating: 7.7
Through opera we see Dexter's origins leading up to the creation of his laboratory.
User ratings: 82
Average rating: 7.6
Last But Not Beast
In Japan as part of a student exchange program, Dexter gets involved in a battle.
User ratings: 97
Average rating: 8.0
Streaky Clean/A Dad Cartoon/Sole Brother
"Streaky Clean" (9 minutes) When Dexter gets tired of spilling stuff on himself, he invents a washing machine satellite to zap out any spots. But when the satellite is nudged in space to a higher setting, the spots aren't the only things that get removed.
User ratings: 62
Average rating: 6.1
Mind Over Chatter/A Quakor Cartoon/Momdark
"Mind Over Chatter" (9 minutes) Dexter wants to know what Dad has gotten him for his birthday, so he creates an invention so he can read minds. But when it backfires, it's everyone else who can read Dexter's thoughts.
User ratings: 59
Average rating: 6.2
Copping an Aptitude/A Failed Lab Experiment/The Grand-Daddy of All Inventions
"Copping an Attitude" (9 minutes) Dexter goes to college ready to learn only to discover it's party central. But when Dexter fries out by over-studying, he's ready to party and creates the biggest party ever.
User ratings: 58
Average rating: 5.9
Poppa Wheely/A Mom Cartoon/The Mock Side of the Moon
"Poppa Wheelie" - Dexter's school has Career Day, "A Mom Cartoon" - Mom is shopping and suddenly a sale is announced. "Mockside of the Moon" - Dexter discovers that the moon is hallow and monsters are living inside.
User ratings: 56
Average rating: 6.3
If Memory Serves/A Mandark Cartoon/Tele Trauma
"If Memory Serves" (9 minutes) Dexter sees that his parents are forgetting things and creates a device to download his memories before they are lost. But when Mandark shows up to steal memories, it's an all-out fight to keep Dexter's genius safe.
User ratings: 56
Average rating: 6.0
A Boy Named Sue/Lab on the Run
"Boy Named Sue" (11 minutes) Mandark reveals the origin of his anger is from being named Susan and being raised by New Age parents who disallowed science. This comes to a head when he meets Dexter, a science genius, who disregards Susan as not being scientifically equal.
User ratings: 64
Average rating: 6.5
Dos Boot/A Dee Dee Cartoon/Would You Like That in the Can
"Dos Boot" (9 minutes) When Mandark downloads himself into Dexter's computer, Dexter must upload himself in order to combat this virus.
User ratings: 58
Average rating: 6.0
That Magic Moment/A Silent Cartoon/Opposites Attract
"That Magic Moment" (9 minutes) Uncle Magic comes to visit the family and promises to make Dee Dee disappear in a trick. Dexter poo-poos his Uncle's world of illusion and makes Dee Dee disappear via science.
User ratings: 57
Average rating: 6.5
Comic Relief/A Third Dad Cartoon/Robo Dexo 3000
"Comic Relief" (9 minutes) When reading his latest comic book adventure isn't enough for Dexter, he makes a machine so he can create his own adventure. Dexter enters this comic book world and becomes a comic book hero himself-complete with his own supervillain to battle.
User ratings: 54
Average rating: 6.1
Glove at First Sight/A Mom & Dad Cartoon/Smells Like Victory
"Glove At First Sight" (9 minutes) It's a flashback to the 80s as Mom deals with her germaphobia with the slob that will someday be her true love.
User ratings: 55
Average rating: 6.2
Oh, Brother/Another Dad Cartoon/Bar Exam
"Oh Brother" (9 minutes) Dexter is convinced that life would be better if he had an older brother. But he soon learns Dee Dee wasn't really that bad.
User ratings: 54
Average rating: 6.0
Jeepers, Creepers, Where Is Peepers?/Go, Dexter Family, Go!
"Jeepers, Creepers, Where is Peepers" (11 minutes) Koosie's dog Peepers is stolen from Koosland. Koosie begs Dexter for help and Dexter must balance his world of science with Koosie's land of imagination.
User ratings: 62
Average rating: 6.1
Scare Tactics/A Mom Cartoon/My Dad vs. Your Dad
"Scare Tactics" (9 minutes) When Dad won't let Dexter stay up for a late-night scary movie, Dexter sneaks down and watches anyway. Dad sees this and tries to scare Dexter. But then his own trick backfires as the two of them end up being scared by all the spooky sounds in the house.
User ratings: 62
Average rating: 5.9
Beau Tie/Remember Me?/Over-Labbing
"Beau tie" (7 minutes) Dee Dee brings home a boy who's not only cute-he's smart. Soon Dexter and Dee Dee are fighting for his attention.
User ratings: 61
Average rating: 6.8
Sis-Tem Error/Bad Cable Manners/Dexter's Library
"Sis-tem Error" (7 minutes) Dee Dee accidentally shuts down the lab and must embody all of Dexter's lab so he doesn't find out.
User ratings: 61
Average rating: 6.5
The Scrying Game/Monstrosi-Dee Dee/Dad Man Walking
"The Scrying Game" (7 minutes) Dee Dee reads Dexter's fortune and, much to his shock, the things she predicted actually start happening.
User ratings: 57
Average rating: 5.9
Dexter's Little Dilemma/Faux Chapeau/D2
"Dexter's Little Dilemma" (7 minutes) Dexter has shrunk his parents and put them in a model of the house. But the house isn't complete, so Dexter must scramble about before they discover the truth.
User ratings: 57
Average rating: 6.2
Head Band/Stuffed Animal House/Used Ink
"Head Band" (7 minutes) Dee Dee has a song stuck in her head-literally. Dexter discovers that Dee Dee has a viral boy band infecting her brain and must come up with a cure before it spreads throughout the world.
User ratings: 57
Average rating: 6.5
School Girl Crushed/Chess Mom/Father Knows Least
"School Girl Crushed" (7 minutes) Dexter and Mandark attempt to defend their scientific turfs when a new scientific genius come to town. The only thing different is that this genius is a girl!
User ratings: 56
Average rating: 6.5
Dexter the Barbarian/Tuber Time/Sore Eyes
"Dexter the Barbarian" (7 minutes) Dexter is a barbarian just trying to make his way to the bathroom.
User ratings: 57
Average rating: 6.2
Height Unseen/Bygone Errors/Folly Calls
"Height Unseen" (7 minutes) When everyone but him has had a growth spurt, Dexter decides to try and make himself tall. When that fails, he switches things around, making everyone else short.
User ratings: 58
Average rating: 5.9
Voice Over/Blonde Leading the Blonde/Comic Stripper
"Voice Over" (7 minutes) When Computer gets laryngitis, Dexter must find a replacement voice for her.
User ratings: 57
Average rating: 6.6
Tee Party/Dexter's Wacky Races
"Tee Party" (11 minutes) When Dad makes Dexter be his caddy, Dexter destroys the normally peaceful game of golf.
User ratings: 58
Average rating: 6.4
The Lab of Tomorrow/Chicken Scratch/Garage Sale
"The Lab of Tomorrow" (7 minutes) Dexter narrates as he shows new scientists the great inventions he has planned for a super, future, modern lab.
User ratings: 58
Average rating: 6.2
They Got Chops/Poetic Injustice/Comedy of Feathers
"They Got Chops" (7 minutes) When Dee Dee starts layin' the judo on Dexter, he learns to fight back.
User ratings: 61
Average rating: 6.6
Babe Sitter/Mountain Mandark/2Geniuses 2Gether 4Ever
"Babe Sitter" (7 minutes) Mandark thinks he's going to have a nice romantic evening with his lady love when Dee Dee shows up to babysit him. "Mountain Mandark" (7 minutes) Getting in touch with nature, Mandark becomes Mountain Mandark, throwing of the shackles of technology. "2Geniuses 2Gether 4Ever" (7 minutes) Mandark and Dexter become scientific buddies while Mandark plots to destroy Dexter.
User ratings: 58
Average rating: 6.3
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