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The Best Episodes of Dexter's Laboratory

Every episode of Dexter's Laboratory ranked from best to worst. Let's dive into the Best Episodes of Dexter's Laboratory!

The Best Episodes of Dexter's Laboratory

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,...

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  1. 8.2/10(207 votes)

    #1 - Ice Cream Scream

    S2:E39

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

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    Writer:N/A
  2. 7.9/10(249 votes)

    #2 - Old Man Dexter

    S1:E9

    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.

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    Writer:N/A
  3. 7.9/10(14 votes)

    #3 - Decode of Honor

    S2:E40

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

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    Writer:N/A
  4. 7.8/10(258 votes)

    #4 - Maternal Combat

    S1:E3

    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.

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    Writer:N/A
  5. 7.8/10(188 votes)

    #5 - Beard To Be Feared

    S2:E1

    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.

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    Writer:N/A
  6. 7.8/10(181 votes)

    #6 - Labels

    S2:E18

    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.

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    Director:Rob Renzetti
    Writer:N/A
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    The 20 WORST Episodes of Dexter's Laboratory

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  8. 7.7/10(264 votes)

    #7 - Dial M for Monkey: Magmanamus

    S1:E2

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

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    Writer:N/A
  9. 7.7/10(184 votes)

    #8 - Hunger Strikes

    S2:E9

    Dexter uses radiation therapy so he can like vegetables, it actually causes him to only eat vegetables, also, the therapy has consequences if Dexter goes too long without them. He turns into a Parody of The Incredible Hulk without vegetables.

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    Director:Rob Renzetti
    Writer:N/A
  10. 7.6/10(303 votes)

    #9 - DeeDeemensional

    S1:E1

    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.

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    Writer:N/A
  11. 7.6/10(228 votes)

    #10 - Dexter's Rival

    S1:E7

    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.

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    Writer:N/A
  12. 7.6/10(194 votes)

    #11 - Changes

    S1:E12

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

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  13. 7.6/10(155 votes)

    #12 - The Bus Boy

    S2:E32

    Dexter must go to the back of the school bus to retrieve his pencil, where another kid got lost years ago.

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    Writer:N/A
  14. 7.6/10(164 votes)

    #13 - Dexter is Dirty

    S2:E38

    To avoid the bath, Dexter decides to laminate himself.

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    Writer:N/A
  15. 7.5/10(171 votes)

    #14 - Ant Pants

    S2:E3

    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.

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    Writer:N/A
  16. 7.5/10(172 votes)

    #15 - Hamhocks and Armlocks

    S2:E8

    Dexter's father gets challenged to an arm wrestling match against a local champion at a truck stop, when he causes the champion to lose for the first time, but refuses to do so even when he trashes the family car. He finally accepts the challenge when he slams the door in Mom's face. Dee Dee knows he'll get creamed, so Dexter builds him a robotic arm to help him win the match.

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    Writer:N/A
  17. 7.5/10(161 votes)

    #16 - Photo Finish

    S2:E36

    Dee Dee photographs Dexter's secret lab.

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  18. 7.4/10(207 votes)

    #17 - Dexter Dodgeball

    S1:E4

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

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    Writer:N/A
  19. 7.4/10(206 votes)

    #18 - Dexter's Assistant

    S1:E6

    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.

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  20. 7.4/10(199 votes)

    #19 - Dial M for Monkey: Simion

    S1:E8

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

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  21. 7.4/10(194 votes)

    #20 - Double Trouble

    S1:E10

    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.

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    Writer:N/A
  22. 7.4/10(188 votes)

    #21 - Dial M for Monkey: Barbequor

    S1:E11

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

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    Writer:N/A
  23. 7.4/10(150 votes)

    #22 - D & DD

    S2:E7

    When Dexter's friends tire of the complicated traps he sets up as Dungeon Master (he has their character's killed every time), they put Dee Dee in charge for a change of pace.

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  24. 7.4/10(156 votes)

    #23 - Dee Dee Locks and the Ness Monster

    S2:E12

    Dee Dee Locks and the Ness Monster—Dexter's mother forces Dexter to read to Dee Dee when she's sick, but she makes up her own story after being bored by Dexter's story (which was actually a science article). The story is completely mixed up and makes no sense. Dexter ends up catching Dee Dee's illness.

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    Writer:N/A
  25. 7.4/10(153 votes)

    #24 - Backfire

    S2:E13

    Dexter fuses Dee Dee with the family car by accident, causing mayhem. A Parody of Herbie the Love Bug.

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    Director:Rob Renzetti
    Writer:N/A
  26. 7.4/10(162 votes)

    #25 - Book 'Em

    S2:E14

    Dexter accidentally takes a library book without checking it out, so he and Dee Dee try to put it back without being caught.

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    Writer:N/A

Best Episodes Summary

"Ice Cream Scream" is the best rated episode of "Dexter's Laboratory". It scored 8.2/10 based on 207 votes. Directed by Robert Alvarez and written by N/A, it aired on 10/15/1997. This episode scored 0.3 points higher than the second highest rated, "Old Man Dexter".