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The Worst Episodes of Dexter's Laboratory

Every episode of Dexter's Laboratory ranked from worst to best. Explore the Worst 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,...
Genres:AnimationComedySci-Fi & Fantasy

Worst Episodes Summary

"Dimwit Dexter" is the worst rated episode of "Dexter's Laboratory". It scored N/A/10 based on 0 votes. Directed by Genndy Tartakovsky and written by N/A, it aired on 5/26/1996. This episode scored NaN points lower than the second lowest rated, "The Big Sister".

  • Dimwit Dexter
    NaN/100 votes
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    #1 - Dimwit Dexter

    Season 1 Episode 15 - Aired 5/26/1996

    Due to overworking his brain, Dexter's mind shuts down, making him act idiotic.

    Director: Genndy Tartakovsky

    Writer: N/A

  • The Big Sister
    NaN/100 votes
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    #2 - The Big Sister

    Season 1 Episode 18 - Aired 6/2/1996

    Rerun of the second "What a Cartoon!" pilot.

    Director: Genndy Tartakovsky

    Writer: Genndy Tartakovsky

  • Overlabbing
    5.8/10122 votes
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    #3 - Overlabbing

    Season 4 Episode 3 - Aired 11/22/2002

    Dexter and Mandark drill underground to expand their labs, but end up overlapping each other's work. They secretly devise a plan to destroy each other.

    Director: Chris Savino, Don Judge

    Writer: Clay Morrow

  • Sole Brother
    5.9/10126 votes
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    #4 - Sole Brother

    Season 3 Episode 3 - Aired 11/16/2001

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

    Director: Chris Savino, John McIntyre

    Writer: N/A

  • A Mom Cartoon
    5.9/10149 votes
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    #5 - A Mom Cartoon

    Season 3 Episode 11 - Aired 1/18/2002

    Mom spends a day at the supermarket.

    Director: Chris Savino

    Writer: N/A

  • Dad Man Walking
    5.9/10119 votes
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    #6 - Dad Man Walking

    Season 4 Episode 9 - Aired 5/2/2003

    Dexte'rs father begins to sleepwalk, and accidently stumbles into Dexter's Lab

    Director: Chris Savino, Don Judge

    Writer: Carlos Ramos

  • The Grand Daddy of All Inventions
    6.0/10117 votes
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    #7 - The Grand Daddy of All Inventions

    Season 3 Episode 9 - Aired 11/30/2001

    Dexter's mom takes him to his grandpa's house. At first he thinks it's going to be a boring day until he discovers that his grandpa has a secret lab!

    Director: Chris Savino, John McIntyre

    Writer: N/A

  • The Mock Side of the Moon
    6.0/10129 votes
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    #8 - The Mock Side of the Moon

    Season 3 Episode 12 - Aired 1/18/2002

    Dexter travels to the moon and finds aliens that are planning to come to Earth to take everything.

    Director: Chris Savino, John McIntyre

    Writer: N/A

  • A Quackor Cartoon
    6.1/10120 votes
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    #9 - A Quackor Cartoon

    Season 3 Episode 5 - Aired 11/16/2001

    Quackor returns to battle Monkey in Dexter's Lab.

    Director: Chris Savino

    Writer: N/A

  • The Scrying Game
    6.1/10119 votes
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    #10 - The Scrying Game

    Season 4 Episode 7 - Aired 5/2/2003

    Dee Dee learns a new game that can ""predict peoples futures"". She uses it on Dexter, and finds out that the game REALLY DOES predict peoples futures...

    Director: Chris Savino

    Writer: Mike Stern

  • Streaky Clean
    6.2/10132 votes
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    #11 - Streaky Clean

    Season 3 Episode 1 - Aired 11/16/2001

    Dexter creates a device to keep his clothes clean.

    Director: Chris Savino, Robert Alvarez

    Writer: N/A

  • A Dad Cartoon
    6.2/10155 votes
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    #12 - A Dad Cartoon

    Season 3 Episode 2 - Aired 11/16/2001

    Dad decides to give the car a retouch.

    Director: Chris Savino, John McIntyre

    Writer: N/A

  • Copping an Attitude
    6.2/10122 votes
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    #13 - Copping an Attitude

    Season 3 Episode 7 - Aired 11/30/2001

    Because of his exceptional grades Dexter's school and parents have decided that he can go to college. At first Dexter is happy to be there so he can fill his mind with college knowledge, but in the end the students influence on Dexter allows him to do college pranks sending him a one way ticket back to Huber Elementary School.

    Director: Chris Savino, John McIntyre

    Writer: N/A

  • Sis-Tem Error
    6.2/10119 votes
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    #14 - Sis-Tem Error

    Season 4 Episode 4 - Aired 4/25/2003

    Dee Dee accidentally breaks down Dexter's lab, and she tries to not and let him know its broken.

    Director: Chris Savino, Don Judge

    Writer: Mark O'Hare

  • Monstrosi-Dee Dee
    6.2/10122 votes
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    #15 - Monstrosi-Dee Dee

    Season 4 Episode 8 - Aired 5/2/2003

    A Monster starts roaming Dexter's lab, although Dexter doesnt know its just Dee Dee, who ate an apple in a failed lab experiment.

    Director: Chris Savino, Don Judge

    Writer: Gabe Swarr

  • D²
    6.2/10117 votes
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    #16 - D²

    Season 4 Episode 12 - Aired 5/9/2003

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

    Director: Chris Savino, James T. Walker

    Writer: Mark O'Hare

  • Mind Over Chatter
    6.3/10118 votes
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    #17 - Mind Over Chatter

    Season 3 Episode 4 - Aired 11/16/2001

    Dexter uses a device to listen to what Dad is thinking, but the experiment backfires and everyone else can hear what Dexter is thinking.

    Director: Chris Savino, Robert Alvarez

    Writer: N/A

  • A Failed Lab Experiment
    6.3/10117 votes
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    #18 - A Failed Lab Experiment

    Season 3 Episode 8 - Aired 11/30/2001

    Dexter creates a device taht doesn't work the way he wanted.

    Director: Chris Savino

    Writer: N/A

  • If Memory Serves
    6.3/10127 votes
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    #19 - If Memory Serves

    Season 3 Episode 13 - Aired 2/22/2002

    Fearing that his memory might be limited, Dexter uses a device to save all his memories.

    Director: Chris Savino, Robert Alvarez

    Writer: N/A

  • Remember Me?
    6.3/10121 votes
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    #20 - Remember Me?

    Season 4 Episode 2 - Aired 11/22/2002

    Dexter is hit by a wrench while working on a device, and suffers amnesia, Dee Dee decides to mess with his head

    Director: Chris Savino

    Writer: Kevin Kaliher

  • Dexter's Library
    6.3/10117 votes
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    #21 - Dexter's Library

    Season 4 Episode 6 - Aired 4/25/2003

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

    Director: Chris Savino, Don Judge

    Writer: Mark O'Hare

  • Faux Chapeau
    6.3/10117 votes
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    #22 - Faux Chapeau

    Season 4 Episode 11 - Aired 5/9/2003

    Dexter creates a new invention and wears it on his head. It suddenly becomes the latest fashion craze at Huber elementry.

    Director: Chris Savino, Don Judge

    Writer: Chris Reccardi

  • Poppa Wheely
    6.4/10118 votes
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    #23 - Poppa Wheely

    Season 3 Episode 10 - Aired 1/18/2002

    It's career day and Dexter is ashamed of his Dad so he creates a Dad that looks more like him.

    Director: Chris Savino, John McIntyre

    Writer: N/A

  • Momdark
    6.5/10130 votes
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    #24 - Momdark

    Season 3 Episode 6 - Aired 11/16/2001

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

    Director: Chris Savino, John McIntyre

    Writer: N/A

  • Bad Cable Manners
    6.5/10118 votes
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    #25 - Bad Cable Manners

    Season 4 Episode 5 - Aired 4/25/2003

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

    Director: Chris Savino

    Writer: Clay Morrow