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The Best Episodes of Dexter's Laboratory Season 1

Every episode of Dexter's Laboratory Season 1 ranked from best to worst. Discover the Best Episodes of Dexter's Laboratory Season 1!

Binge this in 2h 55m•Peaking at 7.9/10

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, as well as his arch-rival and neighbor, Mandark.

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Episode Rankings

  1. #1 Fan Favorite
    Dexter's Laboratory Season 1 Episode 3 - Maternal Combat
    7.9/10(302 votes)

    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.

    Directors:Genndy Tartakovsky, Rob Renzetti
    Writer:Unknown

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  2. Dexter's Laboratory Season 1 Episode 9 - Old Man Dexter
    7.9/10(284 votes)

    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.

    Directors:Genndy Tartakovsky, Craig McCracken
    Writer:Unknown

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  3. Dexter's Laboratory Season 1 Episode 2 - Dial M for Monkey: Magmanamus
    7.7/10(307 votes)

    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.

    Directors:Genndy Tartakovsky, Paul Rudish
    Writer:Unknown

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  4. Dexter's Laboratory Season 1 Episode 1 - DeeDeemensional
    7.6/10(356 votes)

    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.

    Directors:Genndy Tartakovsky, Rob Renzetti
    Writer:Unknown

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  5. Dexter's Laboratory Season 1 Episode 7 - Dexter's Rival
    7.6/10(259 votes)

    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.

    Director:Genndy Tartakovsky
    Writer:Unknown

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  6. Dexter's Laboratory Season 1 Episode 12 - Changes
    7.5/10(222 votes)

    S1:E12

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

    Director:Genndy Tartakovsky
    Writer:Genndy Tartakovsky

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  7. Dexter's Laboratory Season 1 Episode 6 - Dexter's Assistant
    7.4/10(235 votes)

    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.

    Directors:Genndy Tartakovsky, Rob Renzetti
    Writer:Unknown

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  8. Dexter's Laboratory Season 1 Episode 10 - Double Trouble
    7.4/10(225 votes)

    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.

    Directors:Genndy Tartakovsky, Rob Renzetti
    Writer:Unknown

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  9. Dexter's Laboratory Season 1 Episode 4 - Dexter Dodgeball
    7.3/10(242 votes)

    S1:E4

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

    Directors:Genndy Tartakovsky, Craig McCracken
    Writer:Unknown

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  10. Dexter's Laboratory Season 1 Episode 8 - Dial M for Monkey: Simion
    7.3/10(230 votes)

    S1:E8

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

    Directors:Genndy Tartakovsky, Paul Rudish
    Writer:Unknown

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  11. Dexter's Laboratory Season 1 Episode 11 - Dial M for Monkey: Barbequor
    7.3/10(211 votes)

    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.

    Directors:Genndy Tartakovsky, Paul Rudish
    Writer:Unknown

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  12. Dexter's Laboratory Season 1 Episode 13 - Jurassic Pooch
    7.2/10(213 votes)

    S1:E13

    To clone a dinosaur with an incomplete DNA sequence, Dexter uses his dog's genetic code to fill in the gaps.

    Directors:Genndy Tartakovsky, Craig McCracken
    Writer:Unknown

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  13. Dexter's Laboratory Season 1 Episode 14 - Dial M For Monkey: Orgon Grindor
    7.0/10(2 votes)

    S1:E14

    While on a date with Agent Honeydew, Monkey gets hypnotized by the music of the Organ Grindor who commands him to rob Fort Knox.

    Directors:Genndy Tartakovsky, Paul Rudish
    Writer:Unknown

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  14. Dexter's Laboratory Season 1 Episode 19 - Star Spangled Sidekicks
    7.0/10(2 votes)

    S1:E19

    Dexter and Dee Dee enter tryouts to become Major Glory's sidekick. When Dee Dee wins, Dexter realizes that fancy costumes are not the only criterion to become a superhero.

    Director:Genndy Tartakovsky
    Writer:Unknown

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  15. Dexter's Laboratory Season 1 Episode 20 - The Justice Friends: TV Super Pals
    7.0/10(2 votes)

    S1:E20

    With only one television in their apartment, Major Glory, Krunk, and Valhallen disagree on what to watch: Major Glory's televised capture of the Disgruntled Postman, TV Puppet Pals, or the monster truck pull.

    Directors:Genndy Tartakovsky, Craig McCracken
    Writer:Unknown

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  16. Dexter's Laboratory Season 1 Episode 21 - Game Over
    7.0/10(2 votes)

    S1:E21

    Dexter and Dee Dee's father buys a video game for them to play, but the game sucks Dexter inside when he plugs in the cartridge, and it is up to Dee Dee to bring him out.

    Directors:Genndy Tartakovsky, Craig McCracken
    Writer:Unknown

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  17. Dexter's Laboratory Season 1 Episode 27 - The Big Cheese
    7.0/10(2 votes)

    S1:E27

    Dexter's new device allows him to study for the next day's French test while sleeping. It malfunctions, causing a single phrase -omelette du fromage- to repeat throughout the night, causing Dexter to wake up the next morning speaking nothing else except "omelette du fromage".

    Director:Genndy Tartakovsky
    Writer:Unknown

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  18. Dexter's Laboratory Season 1 Episode 35 - Mandarker
    7.0/10(2 votes)

    S1:E35

    Following the destruction of his lab by Dexter and Dee Dee (in the episode Dexter's Rival), Mandark turns to magic to beat Dexter at the science fair.

    Director:Genndy Tartakovsky
    Writer:Unknown

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  19. Dexter's Laboratory Season 1 Episode 36 - Inflata Dee Dee
    7.0/10(2 votes)

    S1:E36

    Dee Dee inflates Dexter's hydro-plasmatic suit and constantly floats in the air, prompting Dexter to bring her down.

    Director:Genndy Tartakovsky
    Writer:Unknown

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  20. Dexter's Laboratory Season 1 Episode 37 - The Justice Friends: Can't Nap
    7.0/10(2 votes)

    S1:E37

    After fellow Justice Friend White Tiger helps Valhallen stop a super-villain, the latter invites him to spend the night in his apartment, forgetting that Major Glory is allergic to cats.

    Director:Genndy Tartakovsky
    Writer:Unknown

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  21. Dexter's Laboratory Season 1 Episode 38 - Monstory
    7.0/10(2 votes)

    S1:E38

    Not interested in hearing Dee Dee's long-winded story, Dexter gives her a silencing formula to keep her quiet, but it instead turns her into a giant monster still bent on telling her story. When he realizes that nothing can make her quiet, he becomes a giant monster himself.

    Directors:Genndy Tartakovsky, Rob Renzetti
    Writer:Unknown

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  22. Dexter's Laboratory Season 1 Episode 5 - Dial M for Monkey: Rasslor
    6.9/10(230 votes)

    S1:E5

    Intergalactic wrestling champion Rasslor challenges Earth's superheroes, including Monkey, with the planet's fate at stake.

    Directors:Genndy Tartakovsky, Paul Rudish
    Writer:Unknown

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  23. Dexter's Laboratory Season 1 Episode 16 - Dee Dee's Room
    6.5/10(2 votes)

    S1:E16

    After Dee Dee steals his critical invention, Dexter ventures into her room to find it.

    Director:Genndy Tartakovsky
    Writer:Unknown

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  24. Dexter's Laboratory Season 1 Episode 17 - Dial M For Monkey: Huntor
    6.5/10(2 votes)

    S1:E17

    Monkey encounters an alien hunter named Huntor and must fight him to save Agent Honeydew and Commander Chief.

    Directors:Genndy Tartakovsky, Paul Rudish
    Writer:Unknown

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  25. Dexter's Laboratory Season 1 Episode 22 - Babysitter Blues
    6.5/10(2 votes)

    S1:E22

    Dexter has a crush on his teenage babysitter Lisa. When he finds out that she has a boyfriend, he sabotages their relationship and accelerates his age by ten years in an attempt to win her heart.

    Directors:Craig McCracken, Rob Renzetti
    Writer:Unknown

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Season 1 Ratings Summary

"Maternal Combat" is the best rated episode of "Dexter's Laboratory" season 1. It scored 7.9/10 based on 302 votes. Directed by Genndy Tartakovsky, Rob Renzetti and written by Unknown, it aired on 4/28/1996. This episode is rated 0.0 points higher than the second-best, "Old Man Dexter".