Dexter's Laboratory

10 Worst 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

Written by Sophie and last updated on feb 12, 2022.

PS: The following content contains spoilers!

PPS: I will admit that parts of this page was written with the help of AI - it makes my work so much easier to not start from a blank page!

Dexter's Laboratory - S2E3

#10 - Ant Pants (Season 2 - Episode 3)

Dexter prevents Dee Dee from destroying some ants. In order to teach her about ants, Dexter and Dee enter Dexter's ant farm. The ants think Dexter is a criminal and has him fight to the death with a stronger ant.

The episode was rated 7.48 from 42 votes.

Dexter's Laboratory - S3E2

#9 - A Dad Cartoon (Season 3 - Episode 2)


Dad decides to give the car a retouch.

The episode was rated 7.47 from 19 votes.

Dexter's Laboratory - S2E1

#8 - Beard To Be Feared (Season 2 - Episode 1)

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. Unfortunately, everyone thinks he's a hero.

The episode was rated 7.41 from 51 votes.

Dexter's Laboratory - S1E18

#7 - The Big Sister (Season 1 - Episode 18)


When Dee Dee eats an experimental cookie of Dexter's design, she grows extremely tall and makes the city her dollhouse, leaving it up to Dexter to don his giant Robo-Dexo suit and bring her back.

The episode was rated 7.38 from 26 votes.

Dexter's Laboratory - S1E25

#6 - Dollhouse Drama (Season 1 - Episode 25)

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 episode was rated 7.37 from 30 votes.

Dexter's Laboratory - S4E12

#5 - D2 (Season 4 - Episode 12)


Dexter and Dee Dee realize when they work together, they make a pretty good team.

The episode was rated 7.36 from 11 votes.

Dexter's Laboratory - S2E39

#4 - Ice Cream Scream (Season 2 - Episode 39)

Dexter will do anything to make the ice cream vendor stop to get some ice cream.

The episode was rated 7.27 from 11 votes.

Dexter's Laboratory - S4E6

#3 - Dexter's Library (Season 4 - Episode 6)


When Dexter becomes the head of a library, he enforces the rules really hard, driving everyone crazy.

The episode was rated 7.17 from 12 votes.

Dexter's Laboratory - S3E3

#2 - Sole Brother (Season 3 - Episode 3)

After a failed mutation experiment, Dexter becomes Dee Dee's foot.

The episode was rated 7.00 from 20 votes.

Dexter's Laboratory - S3E6

#1 - Momdark (Season 3 - Episode 6)


Mandark disguises as Mom in order to get into Dexter's Lab.

The episode was rated 6.73 from 15 votes.

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