The BEST episodes of Dexter's Laboratory season 4

Every episode of Dexter's Laboratory season 4, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Dexter's Laboratory season 4!

Sleep tight, America! Your fate lies safely in the hands of Dexter, a child genius who whips up dazzling, world-saving inventions in his secret laboratory. Big sister Dee Dee frequently wrecks his experiments, but his bigger nemesis is Mandark, his brilliant rival at Huber Elementary School. Mom and Dad, of course, have no idea what their little angel is up to.

Last Updated: 11/5/2024Network: Cartoon NetworkStatus: Ended
Dexter's Wacky Races
star
8.31
13 votes

#1 - Dexter's Wacky Races

Season 4 - Episode 32 - Aired 9/26/2003

Dexter, Monkey, The Justice Freinds, Dee-Dee, her imaginary freind Coosie, Mandark, his parents, and Dexter's Parents participate in a cross-country race

Watch Now:Amazon
Voice Over
star
8.27
11 votes

#2 - Voice Over

Season 4 - Episode 28 - Aired 9/19/2003

When Dexter's Computer gets Laryngitis, Dexter must find a replacement voice for her.

Writer: Charlie Bean
Watch Now:Amazon
School Girl Crushed
star
8.08
12 votes

#3 - School Girl Crushed

Season 4 - Episode 16 - Aired 5/23/2003

Dexter and Mandark are both outperformed by a new girl attending the school, jealous, they become allies to deal with her.

Writer: Charlie Bean
Watch Now:Amazon
Stuffed Animal House
star
8.08
12 votes

#4 - Stuffed Animal House

Season 4 - Episode 14 - Aired 5/16/2003

Dee Dee's stuffed animals come to life and roam the house. Dee Dee and Dexter must get them before Mom and Dad find out.

Writer: Gabe Swarr
Watch Now:Amazon
Tuber Time
star
8.08
13 votes

#5 - Tuber Time

Season 4 - Episode 20 - Aired 5/30/2003

When Dexter realizes the power of the potato, he redesigns his lab to work on it.

Writer: Mark O'Hare
Watch Now:Amazon
Used Ink
star
8.00
11 votes

#6 - Used Ink

Season 4 - Episode 15 - Aired 5/16/2003

Dexter creates an ink in which lets him command them to do whatever he wants them to do. Although when Mandark gets a hold of it, Dexter is the one being the slave.

Writer: Carlos Ramos
Watch Now:Amazon
Comic Stripper
star
8.00
9 votes

#7 - Comic Stripper

Season 4 - Episode 30 - Aired 9/19/2003

Dexter finds out that all of Mandark's plans are taken from a comic book. This way, he can get ready.

Watch Now:AmazonApple TV
The Lab of Tomorrow
star
8.00
10 votes

#8 - The Lab of Tomorrow

Season 4 - Episode 33 - Aired 11/4/2003

Monkey narrates a documentary of the future of Laboratories and sciences.

Writer: Charlie Bean
Watch Now:Amazon
Garage Sale
star
8.00
13 votes

#9 - Garage Sale

Season 4 - Episode 35 - Aired 11/4/2003

Dexter's parents accidentally sell Dexter's latest invention, and it is bought by Mandark.

Writer: Clay Morrow
Watch Now:Amazon
Dexter the Barbarian
star
7.92
13 votes

#10 - Dexter the Barbarian

Season 4 - Episode 19 - Aired 5/30/2003

Dexter goes on a quest. His quest is to reach the bathroom before he explodes.

Writer: Chris Savino
Watch Now:Amazon
Sore Eyes
star
7.85
13 votes

#11 - Sore Eyes

Season 4 - Episode 21 - Aired 5/30/2003

Dexter is tired of wearing glasses, so he uses laser surgery on his eyes to make him have 1/20 vision. Although, he learns than no human should be able to see THIS well...

Writer: Bill Wray
Watch Now:Amazon
Comedy of Feathers
star
7.73
15 votes

#12 - Comedy of Feathers

Season 4 - Episode 38 - Aired 11/20/2003

When Dee Dee sees an ostrich at the zoo, she wants one of her own as a pet.

Dexter's Little Dilemma
star
7.72
18 votes

#13 - Dexter's Little Dilemma

Season 4 - Episode 10 - Aired 5/9/2003

Dexter accidentally shrinks his parents, and puts them into a model of there house. Although the house isn't completed, so Dexter must find a way to reverse it before they know the truth.

Writer: Clay Morrow
Watch Now:Apple TV
Folly Calls
star
7.70
10 votes

#14 - Folly Calls

Season 4 - Episode 27 - Aired 9/12/2003

When Dee Dee accidentally chops off her pigtail, Dexter gives her some hair growth potion. Although when she uses it, her hair floods the entire house.

Writer: Bobby London
Bad Cable Manners
star
7.67
21 votes

#15 - Bad Cable Manners

Season 4 - Episode 5 - Aired 4/25/2003

Dad wants cable really bad, so Dexter illegally pirates cable for him.

Writer: Clay Morrow
Watch Now:Apple TV
Babe Sitter
star
7.67
12 votes

#16 - Babe Sitter

Season 4 - Episode 22 - Aired 9/5/2003

Dee Dee goes over to Mandark's house to baby sit him, and Mandark likes that idea.

Writer: Mark O'Hare
Blonde Leading the Blonde
star
7.64
11 votes

#17 - Blonde Leading the Blonde

Season 4 - Episode 29 - Aired 9/19/2003

Dexter refuses to see that blondes have more fun, so he dyes Dee Dee's hair to prove it.

2 Geniuses 2 Gether 4 Ever
star
7.60
10 votes

#18 - 2 Geniuses 2 Gether 4 Ever

Season 4 - Episode 24 - Aired 9/5/2003

Dexter decides its better if him and Mandark work together, although in the end Dexter does all the work while Mandark does nothing

Writer: Clay Morrow
Chicken Scratch
star
7.57
14 votes

#19 - Chicken Scratch

Season 4 - Episode 34 - Aired 11/4/2003

When Dexter gets chicken pox, Dee Dee warns him with a ridiculous story about some hens that pecked children at night leaving pimples on them that if scratched would turn into evil contaminated chickens.

Head Band
star
7.56
16 votes

#20 - Head Band

Season 4 - Episode 13 - Aired 5/16/2003

Dee Dee has a song stuck in her head. Literally.

Watch Now:Apple TV
They Got Chops
star
7.54
13 votes

#21 - They Got Chops

Season 4 - Episode 36 - Aired 11/20/2003

Dee Dee starts layin' down the Judo on Dexter, then Dexter learns how to fight back.

Tee Party
star
7.50
12 votes

#22 - Tee Party

Season 4 - Episode 31 - Aired 9/26/2003

Dexter and his dad enter a Golf tournament, with Dad eager to get his hands on the Trophy, but there is one problem: he is hopeless at Golf, so Dexter decides to help with a remote controlled Golf ball

Mountain Mandark
star
7.50
12 votes

#23 - Mountain Mandark

Season 4 - Episode 23 - Aired 9/5/2003

Mandark drops technology and starts being more in touch with nature.

D2
star
7.39
18 votes

#24 - D2

Season 4 - Episode 12 - Aired 5/9/2003

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

Writer: Mark O'Hare
Watch Now:Apple TV
Chess Mom
star
7.38
13 votes

#25 - Chess Mom

Season 4 - Episode 17 - Aired 5/23/2003

Mom thinks she should spend quality time and watch Dexter in his chess competition. Although, she really embarrasses Dexter while hes there...

Writer: Charlie Bean
Watch Now:Apple TV