Dexter's Laboratory

1996 star 7.7 tv4 Seasons play_circle220 Episodes

He skips grades. She just skips

Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her out, as well as his arch-rival and neighbor, Mandark.

Animation Comedy Sci-Fi & Fantasy

tv Seasons & Episodes

Episode 1
E1

DeeDeemensional

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.

Apr 28, 1996

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Episode 2
E2

Dial M for Monkey: Magmanamus

Monkey must defend the city from a giant underground lava monster, Magmanamus, who cannot sleep because of the noise created by its residents.

Apr 28, 1996

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Episode 3
E3

Maternal Combat

When his mother falls ill, Dexter creates a robot to do her chores. Dee Dee gets hold of its remote control and wreaks havoc, forcing Dexter to create a second robot to counter Dee Dee's.

Apr 28, 1996

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Episode 4
E4

Dexter Dodgeball

Dexter is forced to play dodgeball by his P. E. teacher. Constantly failing, Dexter builds a robotic exoskeleton to defend himself.

May 5, 1996

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Episode 5
E5

Dial M for Monkey: Rasslor

Intergalactic wrestling champion Rasslor challenges Earth's superheroes, including Monkey, with the planet's fate at stake.

May 5, 1996

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Episode 6
E6

Dexter's Assistant

In need of an assistant to operate his latest invention, Dexter performs a brain transplant on Dee Dee to make her smart enough to fulfill the role. With her new brain, Dee Dee proves to be more intelligent than Dexter.

May 5, 1996

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Episode 7
E7

Dexter's Rival

Mandark Astronomanov, a new student at Dexter's school, seems to be superior to Dexter academically. Mandark forces Dexter to shut down his lab so that Mandark's lab can gain more power. However, with the help of Dee Dee, Dexter manages to destroy Mandark's lab.

May 12, 1996

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Episode 8
E8

Dial M for Monkey: Simion

Monkey encounters Simion, an intelligent anthropomorphic chimpanzee who seeks vengeance on humans for turning him into his current state.

May 12, 1996

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Episode 9
E9

Old Man Dexter

Banned from watching a late-night movie due to his young age, Dexter uses his technology to artificially grow into adulthood, but Dee Dee tampers with his machine, causing Dexter to turn into an old man.

May 12, 1996

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Episode 10
E10

Double Trouble

Dee Dee and her friends, Lee Lee and Mee Mee, enter Dexter's lab and wreak havoc. Dexter clones himself to stop them, but the girls too make clones of themselves.

May 19, 1996

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Episode 11
E11

Dial M for Monkey: Barbequor

Monkey's birthday party is interrupted by Barbequor an intergalactic villain who plans to eat the planets, and his sidekick, the Silver Spooner.

May 19, 1996

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Episode 12
E12

Changes

Rerun of "Dexter's Laboratory", the first "What a Cartoon!" pilot.

May 19, 1996

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Episode 13
E13

Jurassic Pooch

To clone a dinosaur with an incomplete DNA sequence, Dexter uses his dog's genetic code to fill in the gaps.

May 26, 1996

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Episode 14
E14

Dial M For Monkey: Orgon Grindor

While on a date with Agent Honeydew, Monkey gets hypnotized by the music of the Organ Grindor who commands him to rob Fort Knox.

May 26, 1996

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Episode 15
E15

Dimwit Dexter

Due to overworking his brain, Dexter's mind shuts down, making him act idiotic.

May 26, 1996

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Episode 16
E16

Dee Dee's Room

After Dee Dee steals his critical invention, Dexter ventures into her room to find it.

Jun 2, 1996

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Episode 17
E17

Dial M For Monkey: Huntor

Monkey encounters an alien hunter named Huntor and must fight him to save Agent Honeydew and Commander Chief.

Jun 2, 1996

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Episode 18
E18

The Big Sister

Rerun of the second "What a Cartoon!" pilot.

Jun 2, 1996

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Episode 19
E19

Star Spangled Sidekicks

Dexter and Dee Dee enter tryouts to become Major Glory's sidekick. When Dee Dee wins, Dexter realizes that fancy costumes are not the only criterion to become a superhero.

Nov 20, 1996

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Episode 20
E20

The Justice Friends: TV Super Pals

With only one television in their apartment, Major Glory, Krunk, and Valhallen disagree on what to watch: Major Glory's televised capture of the Disgruntled Postman, TV Puppet Pals, or the monster truck pull.

Nov 20, 1996

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Episode 21
E21

Game Over

Dexter and Dee Dee's father buys a video game for them to play, but the game sucks Dexter inside when he plugs in the cartridge, and it is up to Dee Dee to bring him out.

Nov 20, 1996

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Episode 22
E22

Babysitter Blues

Dexter has a crush on his teenage babysitter Lisa. When he finds out that she has a boyfriend, he sabotages their relationship and accelerates his age by ten years in an attempt to win her heart.

Nov 27, 1996

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Episode 23
E23

The Justice Friends: Valhallen's Room

Valhallen loses his magic ax and starts turning into a nerd, forcing Major Glory and Krunk to enter his room to find it.

Nov 27, 1996

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Episode 24
E24

Dream Machine

When Dexter's nightmares become frequent and problematic, he invents a machine that allows him to have nice dreams, as long as Dee Dee can operate it properly while she is awake.

Nov 27, 1996

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Episode 25
E25

Dollhouse Drama

Suspicious that Dee Dee has not entered his lab even once on a particular day, Dexter shrinks himself and enters her room to spy on her. He soon becomes an unwilling character in Dee Dee's doll story, but he believes the story to be real.

Dec 4, 1996

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Episode 26
E26

The Justice Friends: Krunk's Date

While fighting Comrade Red and his gang, Krunk falls in love with his equivalent in their gang, She-Thing.

Dec 4, 1996

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Episode 27
E27

The Big Cheese

Dexter's new device allows him to study for the next day's French test while sleeping. It malfunctions, causing a single phrase -omelette du fromage- to repeat throughout the night, causing Dexter to wake up the next morning speaking nothing else except "omelette du fromage".

Dec 4, 1996

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Episode 28
E28

Way of the Dee Dee

Dee Dee teaches Dexter how to live life her way instead of being lonely and purely focused on science.

Dec 11, 1996

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Episode 29
E29

The Justice Friends: Say Uncle Sam

Major Glory forces Krunk and Valhallen to tidy up their apartment for his Uncle Sam, who is coming over for a visit.

Dec 11, 1996

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Episode 30
E30

Tribe Called Girl

To learn more about girls, Dexter camouflages himself and enters Dee Dee's room, where she is having a sleepover with her friends Lee Lee and Mee Mee. He gets caught by the girls, who force him to take part in their activities.

Dec 11, 1996

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Episode 31
E31

Spacecase

To prevent himself from being taken away by aliens for experimentation, Dexter tricks Dee Dee into going instead, but he regrets his decision after realizing how much he cares for her.

Dec 18, 1996

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Episode 32
E32

The Justice Friends: Ratman

To fix their apartment's plumbing, Krunk and Valhallen go to the basement, where they meet Ratman, a diminutive vigilante raised by rats (a parody of Batman).

Dec 18, 1996

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Episode 33
E33

Dexter's Debt

Dexter's lab is threatened with repossession unless he can repay his debt to NASA. When Dee Dee wins the same amount in a lottery, he decides to steal her money out of desperation.

Dec 18, 1996

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Episode 34
E34

The Justice Friends: Bee Where?

Major Glory, Krunk, and Valhallen try to rid their apartment of a bee.

Dec 25, 1996

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Episode 35
E35

Mandarker

Following the destruction of his lab by Dexter and Dee Dee (in the episode Dexter's Rival), Mandark turns to magic to beat Dexter at the science fair.

Dec 25, 1996

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Episode 36
E36

Inflata Dee Dee

Dee Dee inflates Dexter's hydro-plasmatic suit and constantly floats in the air, prompting Dexter to bring her down.

Jan 1, 1997

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Episode 37
E37

The Justice Friends: Can't Nap

After fellow Justice Friend White Tiger helps Valhallen stop a super-villain, the latter invites him to spend the night in his apartment, forgetting that Major Glory is allergic to cats.

Jan 1, 1997

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Episode 38
E38

Monstory

Not interested in hearing Dee Dee's long-winded story, Dexter gives her a silencing formula to keep her quiet, but it instead turns her into a giant monster still bent on telling her story. When he realizes that nothing can make her quiet, he becomes a giant monster himself.

Jan 1, 1997

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people Cast

Candi Milo

Candi Milo

Dexter (voice)

Kat Cressida

Kat Cressida

Dee Dee (voice)

Jeff Bennett

Jeff Bennett

Dad (voice)

Kath Soucie

Kath Soucie

Mom (voice)

Eddie Deezen

Eddie Deezen

Mandark (voice)

apartment Production Companies

Hanna-Barbera Cartoons Hanna-Barbera Cartoons
Cartoon Network Studios Cartoon Network Studios

public Countries

United States of America