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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see all options Availability data: JustWatch
- Seasons
- 4
- Episodes aired
- 220
- Latest aired
- S04E36
- Total runtime
- 1d 3h
Timeline when each season aired
- Season 1 April 1996 – January 1997 38 episodes
- Season 2 July 1997 – June 1998 108 episodes
- the show was away for 3 years and 5 months
- Season 3 November 2001 – September 2002 36 episodes
- Season 4 November 2002 – November 2003 38 episodes
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S03E01 Streaky Clean
November 16 · 7min find the promo
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Dexter creates a device to keep his clothes clean.
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S03E02 A Dad Cartoon
November 16 · 7min find the promo
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Dad decides to give the car a retouch.
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S03E03 Sole Brother
November 16 · 7min find the promo
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After a failed mutation experiment, Dexter becomes Dee Dee's foot.
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S03E04 Mind Over Chatter
November 16 · 7min find the promo
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Dexter uses a device to listen to what Dad is thinking, but the experiment backfires and everyone else can hear what Dexter is thinking.
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S03E05 A Quackor Cartoon
November 16 · 7min find the promo
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Quackor returns to battle Monkey in Dexter's Lab.
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S03E06 Momdark
November 16 · 7min find the promo
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Mandark disguises as Mom in order to get into Dexter's Lab.
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S03E07 Copping an Attitude
November 30 · 9min find the promo
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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.
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S03E08 A Failed Lab Experiment
November 30 · 4min find the promo
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Dexter creates a device taht doesn't work the way he wanted.
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S03E09 The Grand Daddy of All Inventions
November 30 · 9min find the promo
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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!
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S03E10 Poppa Wheely
January 18 · 9min find the promo
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It's career day and Dexter is ashamed of his Dad so he creates a Dad that looks more like him.
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S03E11 A Mom Cartoon
January 18 · 4min find the promo
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Mom spends a day at the supermarket.
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S03E12 The Mock Side of the Moon
January 18 · 9min find the promo
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Dexter travels to the moon and finds aliens that are planning to come to Earth to take everything.
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S03E13 If Memory Serves
February 22 · 9min find the promo
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Fearing that his memory might be limited, Dexter uses a device to save all his memories.
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S03E14 A Mandark Cartoon
February 22 · 4min find the promo
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Mandark plans another scheme to get rid of Dexter.
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S03E15 Tele Trauma
February 22 · 9min find the promo
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Tired of missing his favorite TV shows because of studying, Dexter creates a special helmet that absorbs all the TV info.
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S03E16 A Boy Named Sue
March 29 · 11min find the promo
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How did a young child called Susan became the being now known as Mandark? Born to free spirits, and with a passionate determination to harness the forces of science for his own ends, this is his story...
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S03E17 Lab on the Run
March 29 · 11min find the promo
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Two robots escape from Dexter's lab in order to have a better life.
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S03E18 Dos Boot
June 7 · 9min find the promo
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Mandark gets in Dexters computer raving havok, so Dexter must stop him.
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S03E19 A Dee Dee Cartoon
June 7 · 4min find the promo
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After being kicked out of Dexter's Lab (AGAIN) She goes and plays in her ""lab"".
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S03E20 Would You Like That In The Can
June 7 · 9min find the promo
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A girl accidentally takes Dexter's lunchbox, so Dexter and his friend must go into the girls bathroom to get it.
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S03E21 That Magic Moment
June 14 · 9min find the promo
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Dexter's Magic Uncle Ferger 'O Reiley pays a visit.
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S03E22 A Silent Cartoon
June 14 · 4min find the promo
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Dexter is trying to build his lab blue, but Dee Dee keeps making it pink.
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S03E23 Opposites Attract
June 14 · 8min find the promo
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Dexter creates a magnetic field to keep Dee Dee away from him.
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S03E24 Comic Relief
June 21 · 9min find the promo
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Dexter creates a special device that lets him create his own life-like superhero comic... along with his sister villian ""Deestructa"".
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S03E25 A Third Dad Cartoon
June 21 · 4min find the promo
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Dad goes with the kids to play some golf.
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S03E26 RoboDexo 3000
June 21 · 9min find the promo
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Dexter creates the ultimate robot (RoboDexo 3000) to replace his previous 200 model.
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S03E27 Glove at First Sight
June 28 · 9min find the promo
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Mom and Dad recall the moments that got them together.
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S03E28 A Mom & Dad Cartoon
June 28 · 4min find the promo
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Mom and Dad are having a discussion while playing scrabble, a discussion that Dexter and Dee Dee don't interpretate the right way.
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S03E29 Smells Like Victory
June 28 · 9min find the promo
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The U.S. army invades Dexter's lab and Dexter fights them, each side thinking the other is a troop of aliens.
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S03E30 Oh, Brother
July 5 · 9min find the promo
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Dexter uses his newest creation to turn Dee Dee into a boy, but the male version of Dee Dee (Doo Dee) is not as cool as Dexter it would.
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S03E31 Another Dad Cartoon
July 5 · 3min find the promo
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While Mom, Dexter and Dee Dee are out shopping, Dad decides to spend the afternoon dancing... like Tom Cruise in Risky Business.
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S03E32 Bar Exam
July 5 · 9min find the promo
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Dexter must pass a physical bar exam if he wants to pass P.E.
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S03E33 Jeepers, Creepers, Where is Peepers?
July 12 · 11min find the promo
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Dexter and Koosy must save Peepers, otherwise the whole land of Koz will disappear.
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S03E34 Go, Dexter Family, Go!
July 12 · 11min find the promo
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Dexter and his family are kidnapped by aliens, Dexter leads his family in an escape attempt, but when Dexter is captured once more, Mom, Dad, and Dee-Dee attempt to save him.
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S03E35 Scare Tactics
September 20 · 9min find the promo
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Dexter and Dad watch a late night horror movie and spend a scary night in their house.
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S03E36 My Dad vs. Your Dad
September 20 · 9min find the promo
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Both Dexter and Mandark's fathers intercede during another of Dexter and Mandark's petty squabbles, but their effort to get along with one another backfire, and the two also soon engage in a heated fight.