The Best Episodes of Dexter's Laboratory

Dexter's Laboratory is the story of a young boy prodigy. Born with an extraordinary mind, Dexter has built his very own extremely high tech and expansive laboratory in his room that NASA could only dream of. But Dexter has to keep his lab a secret for fear others will exploit it. Through out the years, Dexter has had to hide his lab from his parents and others but it is no easy task. All Dexter wants is to spend all the time he can inventing new things in his lab, but between his stupid and annoying older sister Dee Dee constantly barging into his lab and tearing up the place and his arch enemy and rival genius Mandark constantly tiring to take over his lab, Dexter's life is anything but easy. Dexter's Laboratory was originally premiered on Cartoon Network as part of the inaugural, Space Ghost hosted, "World Premiere Toons" before becoming a feature with two full shorts on the regular series, a.k.a. the What a Cartoon Show, it eventually became a series itself. Character

Dee Dee and the Man

#1 - Dee Dee and the Man

Season 2 - Episode 75

After Dexter "fires" Dee Dee, he realizes that his lab needs chaos.

star 9.60
5 votes
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The Muffin King

#2 - The Muffin King

Season 2 - Episode 50

Dexter and Dee Dee must stop Dad from eating Mom's muffins.

star 9.00
5 votes
Trapped With a Vengeance

#3 - Trapped With a Vengeance

Season 2 - Episode 101

Dexter stays at school too much, forcing the janitor to stay as well, so he waits for a day in which Dexter has to leave early for an emergency, as he plans his revenge...

star 9.00
5 votes
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Dexter and Computress Get Mandark!

#4 - Dexter and Computress Get Mandark!

Season 2 - Episode 103

Dexter and Computress team up in order to shrink Mandark's head.

star 8.60
5 votes
Directors: John McIntyre
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Dee Dee's Room

#5 - Dee Dee's Room

Season 1 - Episode 16

To find his missing invention, Dexter heads into the one place he fears to go: Dee Dee's room, where cooties run rampant.

star 8.40
20 votes
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Chubby Cheese

#6 - Chubby Cheese

Season 2 - Episode 5

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.

star 8.30
23 votes
Directors: Rob Renzetti
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Filet of Soul

#7 - Filet of Soul

Season 2 - Episode 21

When Dee Dee refuses to flush their gold fish down the toilet, the ghost of the fish haunts them.

star 8.20
15 votes
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Mind Over Chatter

#8 - Mind Over Chatter

Season 3 - Episode 4

Dexter uses a device to listen to what Dad is thinking, but the experiment backfires and everyone else can hear what Dexter is thinking.

star 8.15
13 votes
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That Crazy Robot

#9 - That Crazy Robot

Season 2 - Episode 6

One of Dexter's robots becomes Dee Dee's servant when she removes a wrench that froze him up, but the robot is willing to destroy anyone who is mean to her or scolds her, including Dexter.

star 8.13
24 votes
Directors: Rob Renzetti
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Sis-Tem Error

#10 - Sis-Tem Error

Season 4 - Episode 4

Dee Dee accidentally breaks down Dexter's lab, and she tries to not and let him know its broken.

star 8.07
14 votes
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Dimwit Dexter

#11 - Dimwit Dexter

Season 1 - Episode 15

After working himself to hard, Dexter's brain snaps and he turns into, well, a dimwit. Dee Dee seizes the chance and has the now mind dead Dexter do some crazy things for the neighborhood to see.

star 8.00
20 votes
My Dad vs. Your Dad

#12 - My Dad vs. Your Dad

Season 3 - Episode 37

Both Dexter and Mandark's fathers intercede during another of Dexter and Mandark's petty squabbles, but their effort to get along with one another backfire, and the two also soon engage in a heated fight.

star 8.00
7 votes
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#13 - Labels

Season 2 - Episode 18

Dexter and Dee Dee label everything in the house. When their parents get home, they mistake Dexter for Dee Dee (he had a Dee Dee label on his forehead), but he already blamed Dee Dee for the chaos.

star 7.94
18 votes
Directors: Rob Renzetti
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Dial M For Monkey: Orgon Grindor

#14 - Dial M For Monkey: Orgon Grindor

Season 1 - Episode 14

Orgon Grindor uses his hypnotic powers to make Monkey abandon his night with Agent Honeydew and steal the gold from Fort Knox.

star 7.90
20 votes
Dial M for Monkey: Rasslor

#15 - Dial M for Monkey: Rasslor

Season 1 - Episode 5

Tired of never having a worthy opponent, intergalactic wrestling champion Rasslor arrives on Earth hoping to find someone who can actually prove to be a match for him. So, he challenges all of Earth's superheroes to wrestling matches aboard his ship, which they anxiously accept. However, Rasslor refuses to wrestle Monkey due to his size, even though Monkey is the most eager to wrestle him.

star 7.85
41 votes

#16 - Overlabbing

Season 4 - Episode 3

Dexter and Mandark drill underground to expand their labs, but end up overlapping each other's work. They secretly devise a plan to destroy each other.

star 7.85
13 votes
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#17 - Deedeemensional

Season 1 - Episode 1

When Dexter falls victim to a terrifying creature brought forth by his latest invention, Dee Dee goes back in time to warn him. The events only end the episode with a permanent time loop.

star 7.78
161 votes
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Dial M for Monkey: Magmanamus

#18 - Dial M for Monkey: Magmanamus

Season 1 - Episode 2

Due to all the noise being made by all the citizens of the city on a daily basis, the monster Magmanamus is awakened. However, when he goes to the surface to try and get the people to be quiet, he ends up causing even more noise since the people are frightened of him. Now, Monkey prepares to fight him, unaware that Magmanamus only wants peace and quiet, so he can sleep.

star 7.72
60 votes
Dial M for Monkey: Simion

#19 - Dial M for Monkey: Simion

Season 1 - Episode 8

The result of a space experiment, Simion, a super intelligent chimpanzee, plans to get revenge on humans for the way he is now. However, he teleports Monkey onto his ship in order to convince him to join him in his plan for revenge. After almost being convinced, Monkey attempts to show Simion that revenge isn't the answer.

star 7.71
35 votes
Old Man Dexter

#20 - Old Man Dexter

Season 1 - Episode 9

After Dexter is banned from watching The Late Early Movie due to his age, he decides to accelerate his age so that he can see the movie, but Dee Dee tampers with the age acceleration process, causing him to turn into a 95-year old man.

star 7.68
37 votes
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Beau Tie

#21 - Beau Tie

Season 4 - Episode 1

Dee-Dee has a new boyfriend who also likes science and Einstein, and soon the boy finds himself caught in a vicious tug of war...

star 7.67
21 votes
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Quackor the Fowl

#22 - Quackor the Fowl

Season 2 - Episode 2

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.

star 7.64
25 votes
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A Boy Named Sue

#23 - A Boy Named Sue

Season 3 - Episode 16

How did a young child called Susan became the being now known as Mandark? Born to free spirits, and with a passionate determination to harness the forces of science for his own ends, this is his story...

star 7.57
7 votes
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Dexter's Laboratory

#24 - Dexter's Laboratory

Season 1 - Episode 12

Dexter and Dee Dee test his latest invention: a device that turns people into animals, which yields crazy results.

star 7.55
29 votes
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Monstrosi-Dee Dee

#25 - Monstrosi-Dee Dee

Season 4 - Episode 8

A Monster starts roaming Dexter's lab, although Dexter doesn't know its just Dee Dee, who ate an apple in a failed lab experiment.

star 7.50
8 votes