The BEST Episodes of Dexter's Laboratory

Every episode ever - ranked by fan votes!

Last Updated: Sep 19, 2021

Network: Cartoon Network

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

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The Muffin King

#1 - The Muffin King

Season 2 - Episode 50 - Aired Nov 12, 1997

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

star 9.74
38 votes
Trapped With a Vengeance

#2 - Trapped With a Vengeance

Season 2 - Episode 101 - Aired Apr 22, 1998

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 9.71
41 votes
Dexter and Computress Get Mandark!

#3 - Dexter and Computress Get Mandark!

Season 2 - Episode 103 - Aired Apr 29, 1998

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

star 9.66
38 votes
Directors: John McIntyre
Writers: John McIntyre, Tyler Samuel Lee
Dee Dee and the Man

#4 - Dee Dee and the Man

Season 2 - Episode 75 - Aired Feb 18, 1998

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

star 9.61
38 votes
The Old Switcharooms

#5 - The Old Switcharooms

Season 2 - Episode 80 - Aired Mar 4, 1998

After Dexter and Dee Dee destroy Dad's bowling trophy, they are sent to each other's room.

star 9.20
10 votes
Decode of Honor

#6 - Decode of Honor

Season 2 - Episode 40 - Aired Oct 22, 1997

Dexter and Dee Dee get their Action Hank and Pony Puff Secret Codes mixed up.

star 9.18
11 votes
Writers: Craig McCracken
Just an Old Fashioned Lab Song...

#7 - Just an Old Fashioned Lab Song...

Season 2 - Episode 89 - Aired Mar 25, 1998

Dexter takes piano classes from a man that looks a lot like Paul Williams.

star 9.00
10 votes
Directors: John McIntyre
Writers: David Smith
Repairanoid

#8 - Repairanoid

Season 2 - Episode 90 - Aired Mar 25, 1998

When an electrician comes to repair the house, Dexter discovers that if he repairs the lab it will function perfectly.

star 9.00
10 votes
Ultrajerk 2000

#9 - Ultrajerk 2000

Season 2 - Episode 42 - Aired Oct 22, 1997

Dexter's robot takes over his lab.

star 9.00
10 votes
Dee Dee Be Deep

#10 - Dee Dee Be Deep

Season 2 - Episode 46 - Aired Nov 5, 1997

Dee Dee, who's not exactly good at singing, gets Dexter's help on getting a better voice, but not the voice Dexter was expecting.

star 9.00
8 votes
Now That's a Stretch

#11 - Now That's a Stretch

Season 2 - Episode 52 - Aired Nov 19, 1997

Dexter combines himself with bubble gum to become more stretchable.

star 9.00
9 votes
LABretto

#12 - LABretto

Season 2 - Episode 107 - Aired May 6, 1998

The story of how Dexter was born and how he built his lab, in the style of a musical.

star 9.00
12 votes
Writers: David Smith
Critical Gas

#13 - Critical Gas

Season 2 - Episode 68 - Aired Feb 4, 1998

After Dexter eats a giant burrito he believes he's going to die, so he makes a list of everything he must do before that time comes. (Including, make Mom and Dad happy, do dishes, free Robots, make World Peace, end World's hunger, learn to dance, make Dee Dee happy, shut down the Main System... and tell Mom and Dad about the secret laboratory).

star 8.90
10 votes
Sun, Surf and Science

#14 - Sun, Surf and Science

Season 2 - Episode 93 - Aired Apr 1, 1998

Mandark tries to impress Dee Dee by getting into a surfing contest.

star 8.90
10 votes
World's Greatest Mom

#15 - World's Greatest Mom

Season 2 - Episode 41 - Aired Oct 22, 1997

Dexter newest creation gives Mom super powers.

star 8.89
9 votes
G.I.R.L. Squad

#16 - G.I.R.L. Squad

Season 2 - Episode 56 - Aired Nov 26, 1997

Dee Dee, LeeLee and MeeMee become crime fighters, but of course they will not actually fight crime.

star 8.89
9 votes
Directors: Rumen Petkov
Writers: Andy Bialk
Catch of the Day

#17 - Catch of the Day

Season 2 - Episode 84 - Aired Mar 11, 1998

Numerous factors like getting up early, being the first ones there, fishing clothes and other accessories, will not allow Dexter and his Dad to go on a fishing trip.

star 8.89
9 votes
Directors: Rumen Petkov
Writers: Bob Staake
That Crazy Robot

#18 - That Crazy Robot

Season 2 - Episode 6 - Aired Jul 23, 1997

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 8.89
61 votes
Directors: Rob Renzetti
Writers: Andy Bialk
Game For a Game

#19 - Game For a Game

Season 2 - Episode 99 - Aired Apr 15, 1998

Dexter and Dee Dee compete in various games chosen by Dexter.

star 8.86
7 votes
Last But Not Beast

#20 - Last But Not Beast

Season 2 - Episode 108 - Aired Jun 15, 1998

Dexter must save Japan from being destroyed by a monster, but his robot must be controlled by four people to function correctly, so Dexter must tell Dee Dee... and his parents.

star 8.85
13 votes
Paper Route Bout

#21 - Paper Route Bout

Season 2 - Episode 79 - Aired Mar 4, 1998

Dee Dee and the Ninja Clan battle for who delivers the newspapers in the neighborhood.

star 8.80
10 votes
Dexter Detention

#22 - Dexter Detention

Season 2 - Episode 53 - Aired Nov 19, 1997

Dexter is send to detention after a confusion during a test.

star 8.80
10 votes
Coupon For Craziness

#23 - Coupon For Craziness

Season 2 - Episode 66 - Aired Jan 28, 1998

A confusion at the supermarket makes Dexter go home with a different, yet extremely scientific, family; but who is home with his real family?

star 8.80
10 votes
Golden Diskette

#24 - Golden Diskette

Season 2 - Episode 22 - Aired Sep 3, 1997

Dee Dee and Dexter win a free pass to Professor Hawk's magic factory after finding the golden diskette.

star 8.78
23 votes
Writers: Dave Smith
Techno Turtle

#25 - Techno Turtle

Season 2 - Episode 43 - Aired Oct 29, 1997

Dexter heals a turtle by giving him loads of modern, techno stuff.

star 8.78
9 votes