Episode 1
Streaky Clean
7m7.0 / 10
Dexter creates a device to keep his clothes clean.
Episode credits
Directed by Robert Alvarez, Chris SavinoGuest stars Dee Bradley Baker, Jennifer Hale, Tom Kenny
TV series
Dexter's Laboratory
1996TV-G4 seasons7.6 / 10
He skips grades. She just skips
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.
Streaming, rental and purchase options
Where to watch in United States
Checked Jul 22, 2026
Dexter's Laboratory is available to stream on Tubi in United States. You can also rent or buy it from Google Play, Amazon, Apple TV, and Fandango at Home. Use the direct links below to open the provider.
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Synopsis
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.
Season 3 episodes
Choose an episode, then use the watch options above for the show.
Where to watch Dexter's Laboratory
Episode 2
A Dad Cartoon
7m7.0 / 10
Dad decides to give the car a retouch.
Episode credits
Directed by John McIntyre, Chris Savino
Episode 3
Sole Brother
7m7.0 / 10
After a failed mutation experiment, Dexter becomes Dee Dee's foot.
Episode credits
Directed by John McIntyre, Chris Savino
Episode 4
Mind Over Chatter
7m7.0 / 10
Dexter uses a device to listen to what Dad is thinking, but the experiment backfires and everyone else can hear what Dexter is thinking.
Episode credits
Directed by Robert Alvarez, Chris SavinoGuest stars Pamela Adlon, Frank Welker
Episode 5
A Quackor Cartoon
7m7.0 / 10
Quackor returns to battle Monkey in Dexter's Lab.
Episode credits
Directed by Chris SavinoGuest stars Eddie Deezen, Frank Welker
Episode 6
Momdark
7m7.0 / 10
Mandark disguises as Mom in order to get into Dexter's Lab.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Eddie Deezen
Episode 7
Copping an Attitude
9m7.0 / 10
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.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars James Hong, Tom Kenny
Episode 8
A Failed Lab Experiment
4m7.0 / 10
Dexter creates a device taht doesn't work the way he wanted.
Episode credits
Directed by Chris Savino
Episode 9
The Grand Daddy of All Inventions
9m7.0 / 10
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!
Episode credits
Directed by John McIntyre, Chris Savino
Episode 10
Poppa Wheely
9m7.0 / 10
It's career day and Dexter is ashamed of his Dad so he creates a Dad that looks more like him.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Frank Welker, Dee Bradley Baker
Episode 11
A Mom Cartoon
4m7.0 / 10
Mom spends a day at the supermarket.
Episode credits
Directed by Chris Savino
Episode 12
The Mock Side of the Moon
9m7.0 / 10
Dexter travels to the moon and finds aliens that are planning to come to Earth to take everything.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Frank Welker
Episode 13
If Memory Serves
9m7.0 / 10
Fearing that his memory might be limited, Dexter uses a device to save all his memories.
Episode credits
Directed by Robert Alvarez, Chris SavinoGuest stars Eddie Deezen
Episode 14
A Mandark Cartoon
4m7.0 / 10
Mandark plans another scheme to get rid of Dexter.
Episode credits
Directed by Chris SavinoGuest stars Eddie Deezen
Episode 15
Tele Trauma
9m7.0 / 10
Tired of missing his favorite TV shows because of studying, Dexter creates a special helmet that absorbs all the TV info.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Tom Kenny, Frank Welker, Earl Boen
Episode 16
A Boy Named Sue
11m7.0 / 10
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...
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Eddie Deezen
Episode 17
Lab on the Run
11m7.0 / 10
Two robots escape from Dexter's lab in order to have a better life.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Martin Mull, Fred Willard, Tom Kenny, Grey DeLisle
Episode 18
Dos Boot
9m7.0 / 10
Mandark gets in Dexters computer raving havok, so Dexter must stop him.
Episode credits
Directed by Chris SavinoGuest stars Eddie Deezen
Episode 19
A Dee Dee Cartoon
4m7.0 / 10
After being kicked out of Dexter's Lab (AGAIN) She goes and plays in her ""lab"".
Episode credits
Directed by Robert Alvarez, Chris Savino
Episode 20
Would You Like That In The Can
9m7.0 / 10
A girl accidentally takes Dexter's lunchbox, so Dexter and his friend must go into the girls bathroom to get it.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Tom Kenny, Melissa Disney, Kimberly Brooks
Episode 21
That Magic Moment
9m7.0 / 10
Dexter's Magic Uncle Ferger 'O Reiley pays a visit.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Mark Hamill
Episode 22
A Silent Cartoon
4m7.0 / 10
Dexter is trying to build his lab blue, but Dee Dee keeps making it pink.
Episode credits
Directed by Chris Savino
Episode 23
Opposites Attract
8m7.0 / 10
Dexter creates a magnetic field to keep Dee Dee away from him.
Episode credits
Directed by Chris Savino
Episode 24
Comic Relief
9m7.0 / 10
Dexter creates a special device that lets him create his own life-like superhero comic... along with his sister villian ""Deestructa"".
Episode credits
Directed by Chris SavinoGuest stars Tom Kenny
Episode 25
A Third Dad Cartoon
4m7.0 / 10
Dad goes with the kids to play some golf.
Episode credits
Directed by Chris Savino
Episode 26
RoboDexo 3000
9m7.0 / 10
Dexter creates the ultimate robot (RoboDexo 3000) to replace his previous 200 model.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Michael Dorn
Episode 27
Glove at First Sight
9m7.0 / 10
Mom and Dad recall the moments that got them together.
Episode credits
Directed by Robert Alvarez, Chris SavinoGuest stars Tom Kenny
Episode 28
A Mom & Dad Cartoon
4m7.0 / 10
Mom and Dad are having a discussion while playing scrabble, a discussion that Dexter and Dee Dee don't interpretate the right way.
Episode credits
Directed by Chris Savino
Episode 29
Smells Like Victory
9m7.0 / 10
The U.S. army invades Dexter's lab and Dexter fights them, each side thinking the other is a troop of aliens.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Earl Boen, Tom Kenny
Episode 30
Oh, Brother
9m7.0 / 10
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.
Episode credits
Directed by Chris SavinoGuest stars Pamela Adlon
Episode 31
Another Dad Cartoon
3m7.0 / 10
While Mom, Dexter and Dee Dee are out shopping, Dad decides to spend the afternoon dancing... like Tom Cruise in Risky Business.
Episode credits
Directed by Chris Savino
Episode 32
Bar Exam
9m7.0 / 10
Dexter must pass a physical bar exam if he wants to pass P.E.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Dave Coulier, Hamilton Camp
Episode 33
Jeepers, Creepers, Where is Peepers?
11m7.0 / 10
Dexter and Koosy must save Peepers, otherwise the whole land of Koz will disappear.
Episode credits
Directed by David P. SmithGuest stars Dom DeLuise, Tom Kenny, Jay Huguley
Episode 34
Go, Dexter Family, Go!
11m7.0 / 10
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.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Kevin Michael Richardson
Episode 35
Scare Tactics
9m7.0 / 10
Dexter and Dad watch a late night horror movie and spend a scary night in their house.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Tom Kenny
Episode 36
My Dad vs. Your Dad
9m7.0 / 10finale
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.
Episode credits
Directed by John McIntyre, Chris SavinoGuest stars Eddie Deezen
Episode information updated Jul 24, 2026
More about Dexter's Laboratory
Cast
Christine CavanaughDexter (voice)
Kat CressidaDee Dee (voice)
Jeff BennettDad (voice)
Kath SoucieMom (voice)Allison MooreDee Dee (voice)
Candi MiloDexter (voice)
Randy PoffoRasslor (voice)
Dom DeLuiseKoosalagoopagoop (voice)Credits
- Created by
- Genndy Tartakovsky
- Written by
- Clay Morrow, Mark O'Hare, Kevin Kaliher, Genndy Tartakovsky, Charlie Bean, Carlos Ramos, Chris Reccardi, Aaron Springer, Chris Savino, Gabe Swarr, Walt Dohrn, Bill Wray, Mike Stern, Bobby London, Tyler Samuel Lee
Production details
- Status
- Ended
- Series type
- Scripted
- Episodes
- 220
- Original language
- English
Networks & production
Cartoon NetworkUnited States
Hanna-Barbera CartoonsUnited States
Cartoon Network StudiosUnited States
Themes
boy geniusbrother sisterfamilyhouserobotscientistvillain
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