Kat Cressida as Dee Dee (voice)
Episodes 146
Beard To Be Feared
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.
Read MoreQuackor The Fowl
Mandark doesn't know that his pet duck is really Quackor the Fowl, Monkey's rival. Quackor overhears Mandark talking in his sleep about destroying Dexter's lab and tries to do it, unaware that Monkey is Dexter's pet.
Read MoreMom and Jerry
Dexter switches his brain with a mouse, and must avoid his mother when she decides to exterminate him. A Parody of Tom and Jerry.
Read MoreChubby Cheese
At the Chubby Cheese pizza restaurant, Dexter wears a Chubby Cheese hat and tries to slow down the Whack The Weasel machine to win a stuffed Monkey doll before Dee Dee does.
Read MoreThat Crazy Robot
One of Dexter's robots becomes Dee Dee's servant when she removes a wrench that froze him up, but the robot is willing to destroy anyone who is mean to her or scolds her, including Dexter.
Read MoreHamhocks and Armlocks
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.
Read MoreHunger Strikes
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.
Read MoreThe Koos is Loose
Dee Dee's imaginary friend comes to life and annoys Dexter. Dexter ends up wishing him away, then he realizes he made a terrible mistake.
Read MoreMorning Stretch
Dexter oversleeps and still has to finish his homework along with getting ready for school and eating breakfast, so he creates a helmet that expands thirty seconds into thirty minutes, but realizes that slowing down time is more detrimental than helpful. When he gets everything done, the helmet shuts off. But Dee Dee blocks his door causing him to miss the bus. When Dexter asks Dee Dee why, she replies "Snow Day, school's canceled!". Dexter realizes he did all that rushing around for nothing!
Read MoreDee Dee Locks and the Ness Monster
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.
Read MoreSister's Got a Brand New Bag
Dee Dee's new dance annoys Dexter to no end.
Read MoreShoo, Shoe Gnomes
Dexter calls upon the "shoe gnomes" to repair his boots, but can't rid himself of them afterwards. The only way to get rid of them, according to Dee Dee, is to kick them in the butt. Dexter gets rid of the last one with his boot, but it's damaged again.
Read MoreLab of The Lost
Dexter ends up in the "old part of the lab" where his earliest inventions, long since forgotten, are not too happy to see him. They are mad at him for saying they were his greatest inventions, then moved on to another great invention.
Read MoreFantastic Boyage
Dexter tries to inject himself into Dee Dee to find a cure to the common cold, but ends up inside his dog. He believes Dee Dee has been infected with a dog virus. He is then mistaken for the first human virus to infect a dog by the vet.
Read MoreFilet of Soul
When Dee Dee refuses to flush their gold fish down the toilet, the ghost of the fish haunts them.
Read MoreGolden Diskette
Dee Dee and Dexter win a free pass to Professor Hawk's magic factory after finding the golden diskette.
Read More*Figure Not Included
In an attempt to be popular with his ""friends"", Dexter makes his own Mayor Glory Action Figure.
Read MoreEwww That's Growth
Dexter can't get into a roller coaster because he's too small so he makes himself taller.
Read MoreNuclear Confusion
Dee Dee steals the nuclear atom that Dexter needs to make his invention work, but she doesn't know that it will explode if Dexter doesn't find it on time.
Read MoreGerm Warfare
Everybody except Dexter gets sick, so he makes himself a plastic bubble to get germ protection.
Read MoreA Hard Day's Day
It's not a great day for science when Dexter has bad luck due to the position of the stars.
Read MoreOcean Commotion
While at the beach, Dee Dee (who's wearing a mermaid swimsuit) gets captured by a maniac sailor so Dexter must rescue her.
Read MoreThe Bus Boy
Dexter must go to the back of the school bus to retrieve his pencil, where another kid got lost years ago.
Read MoreThe Justice Friends: Things That Go Bonk in the Night
Krunk stays awake all night watching The Puppet Pals Show Marathon, so his brain starts playing him tricks.
Read MoreOl' McDexter
Dexter is sent to summer camp, in a place far away from civilization.
Read MoreSassy Come Home
While the family is at the woods, Dexter goes searching for the Mighty Bigfoot, if Dee Dee doesn't find him first.
Read MorePhoto Finish
Dexter must stop Dee Dee from showing some pictures (that she took earlier in Dexter's lab) to Mom.
Read MoreStar Check Unconventional
Dexter and two friends go to the Star Check Convention, but certain confusion might send them to a different one.
Read MoreDexter is Dirty
To avoid the bath, Dexter decides to laminate himself.
Read MoreIce Cream Scream
Dexter will do anything to make the ice cream vendor stop to get some ice cream.
Read MoreDecode of Honor
Dexter and Dee Dee get their Action Hank and Pony Puff Secret Codes mixed up.
Read MoreWorld's Greatest Mom
Dexter newest creation gives Mom super powers.
Read MoreUltrajerk 2000
Dexter's robot takes over his lab.
Read MoreTechno Turtle
Dexter heals a turtle by giving him loads of modern, techno stuff.
Read MoreGot Your Goat
Dexter and Dee Dee go to South America in order to find the chupacabras, an animal that Dexter created.
Read MoreDee Dee Be Deep
Dee Dee, who's not exactly good at singing, gets Dexter's help on getting a better voice, but not the voice Dexter was expecting.
Read MoreDown in the Dumps
Dexter and Dee Dee go to the dumps to retrieve Dee Dee's lost teddy bear.
Read MoreUnfortunate Cookie
Dexter and Dee Dee get trapped with a Finger trap.
Read MoreThe Muffin King
Dexter and Dee Dee must stop Dad from eating Mom's muffins.
Read MorePicture Day
Dexter finds out he's ugly, so he transforms his face to look better for the school photo.
Read MoreNow That's a Stretch
Dexter combines himself with bubble gum to become more stretchable.
Read MoreDexter Detention
Dexter is send to detention after a confusion during a test.
Read MoreDon't Be a Baby
Dexter and Dee Dee want to become older, but instead they make everyone else a baby.
Read MoreDial M For Monkey: Peltra
A new female villian named Peltra wants Monkey's Coat.
Read MoreG.I.R.L. Squad
Dee Dee, LeeLee and MeeMee become crimefighters, but of course they will not actually fight crime.
Read MoreSports a Poppin'
Dad wants to show Dexter the joy of sports.
Read MoreKoos a la Goop a Goop
Koosy tells Dee Dee that he is the king of the land of Koos, but when Dee Dee goes there...
Read MoreProject Dee Dee
Dee-Dee refuses any kind of help from Dexter on her science project, when Dee-Dee shows Dexter her show-and-tell product, he criticises it heavily and offers his own..contributions
Read MoreTopped Off
Surprised of the results coffee causes on Mom and Dad, Dexter and Dee Dee decide to try it themselves.
Read MoreDee Dee's Tail
Dexter uses his science to turn Dee Dee into a horse.
Read MoreNo Power Trip
Dexter overloads the energy of the laboratory, so he makes numerous tries to reload it.
Read MoreSister Mom
After Dexter did something really bad at school, he gets her mother called, so to not ruin his reputation, he turns Dee Dee into Mom.
Read MoreThe Laughing
After Dexter gets bitten by a clown, he turns into one every night.
Read MoreDexter's Lab: A Story
On his way home, Dexter gets followed by a labrador, when he teaches him to speak, the dog becomes even more annoying.
Read MoreCoupon For Craziness
A confusion at the supermarket makes Dexter go home with a different, yet extremely scientific, family; but who is home with his real family?
Read MoreBetter Off Wet
Dexter is afraid of taking a dive at the pool because Dad always pushes him.
Read MoreCritical Gas
After Dexter eats a giant burrito he believes he's going to die, so he makes a list of everything he must do before that time comes. (Including, make Mom and Dad happy, do dishes, free Robots, make World Peace, end World's hunger, learn to dance, make Dee Dee happy, shut down the Main System... and tell Mom and Dad about the secret laboratory).
Read MoreLet's Save the World You Jerk!
Dexter and Mandark must team up in order to save the Earth from a meteor rain.
Read MoreAverage Joe
After an I.Q. test defines Dexter as ""average"", he decides to live an average life hanging out with an average boy of last name Smith.
Read MoreRushmore Rumble
Dexter and Mandark mechanize the giant figures of Lincoln and Washington from the Mount Rushmore statues and wreak havoc with them.
Read MoreA Boy and His Bug
Dexter creates a small bug that eats all the scrap metal caused by Dee Dee's destruction.
Read MoreYou Vegetabelieve It!
Dexter's untested formula causes all plants in the garden to become dangerous.
Read MoreAye Aye Eyes
After Dexter returns a bunny to a little girl with big round eyes, she starts following Dexter everywhere.
Read MoreDee Dee and the Man
After Dexter ""fires"" Dee Dee, he realizes that his lab needs chaos.
Read MoreDon't Be a Hero
Dexter attempts to make numerous accidents to get super powers.
Read MoreMy Favorite Martian
Dexter goes to Mars to find alien life forms.
Read MorePaper Route Bout
Dee Dee and the Ninja Clan battle for who delivers the newspapers in the neighborhood.
Read MoreThe Old Switcharooms
After Dexter and Dee Dee destroy Dad's bowling trophy, they are sent to each other's room.
Read MoreTrick or Treehouse
Dee Dee builds a treehouse in the garden and Dexter can't stop wondering what's up there.
Read MoreQuiet Riot
Dexter worked all night on his inventions so all he wants is some sleep, but Dee Dee will make sure that that doesn't happen.
Read MoreAccent You Hate
Dexter and his friends Lucky and Pierre(¿?) are victims of a bully that hates kids with funny accents.
Read MoreCatch of the Day
Numerous factors like getting up early, being the first ones there, fishing clothes and other accesories, will not allow Dexter and his Dad to go on a fishing trip.
Read MoreDad is Disturbed
Constant interruptions by Dexter, Dee Dee and Mom will not let Dad watch his golf game.
Read MoreThat's Using Your Head
Dexter meets a bum at an appliance store with a strange device on his head.
Read MoreJust an Old Fashioned Lab Song...
Dexter takes piano classes from a man that looks a lot like Paul Williams.
Read MoreRepairanoid
When an electricist comes to repair the house, Dexter discovers that if he repairs the lab it will function perfectly.
Read MoreThe Continuum of Cartoon Fools
Dee Dee keeps getting into Dexter's lab even though Dexter keeps throwing her out.
Read MoreSun, Surf, and Science
Mandark tries to impress Dee Dee by getting into a surfing contest.
Read MoreGooey Aliens That Control Your Mind
Dexter must save his family after they get possesed by aliens.
Read MoreMisplaced in Space
Dee Dee must save Dexter who is a slave in a distant galaxy.
Read MoreDee Dee's Rival
Dee Dee and Lalavava (Mandark's sister), compete on a ballet contest.
Read MorePslyghtly Psycho
It's Mother's Day and Mom can't take that Dad, Dee Dee and Dexter do all the housework.
Read MoreGame For a Game
Dexter and Dee Dee compete in various games chosen by Dexter.
Read MoreBlackfoot and Slim
A documentary shows the secret lives of Dexter and Dee Dee, also known as Blackfoot and Slim.
Read MoreTrapped With a Vengeance
Dexter stays at school too much, forcing the janitor to stay as well, so he waits for a day in which Dexter has to leave early for an emergency, as he plans his revenge...
Read MoreThe Parrot Trap
Dexter must stop his mechanical parrot before his imitations reveal the secret of his lab.
Read MoreDexter and Computress Get Mandark!
Dexter and Computress team up in order to shrink Mandark's head.
Read MoreThe Justice Friends: Pain in the Mouth
Krunk gets a nacho stuck in his tooth and Mayor Glory wants to take it out himself while Valhallens insists on taking Krunk to the dentist.
Read MoreDexter Vs. Santa's Claws
Dexter must prove to Dee Dee that Santa Claus doesn't exist.
Read MoreDyno-Might
When Blue Falcon appears with a destroyed Dynomutt, Dexter decides to build a new one.
Read MoreLast But Not Beast
Dexter must save Japan from being destroyed by a monster, but his robot must be controlled by four people to function correctly, so Dexter must tell Dee Dee... and his parents.
Read MoreRemember Me?
Dexter is hit by a wrench while working on a device, and suffers amnesia, Dee Dee decides to mess with his head
Read MoreOverlabbing
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.
Read MoreSis-Tem Error
Dee Dee accidentally breaks down Dexter's lab, and she tries to not and let him know its broken.
Read MoreBad Cable Manners
Dad wants cable really bad, so Dexter illegally pirates cable for him.
Read MoreDexter's Library
When Dexter becomes the head of a library, he inforces the rules really hard, driving everyone crazy.
Read MoreThe Scrying Game
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...
Read MoreMonstrosi-Dee Dee
A Monster starts roaming Dexter's lab, although Dexter doesnt know its just Dee Dee, who ate an apple in a failed lab experiment.
Read MoreDad Man Walking
Dexte'rs father begins to sleepwalk, and accidently stumbles into Dexter's Lab
Read MoreDexter's Little Dilemma
Dexter accidentally shrinks his parents, and puts them into a model of there house. Although the house isnt completed, so Dexter must find a way to reverse it before they know the truth.
Read MoreFaux Chapeau
Dexter creates a new invention and wears it on his head. It suddenly becomes the latest fashion craze at Huber elementry.
Read MoreStuffed Animal House
Dee Dee's stuffed animals come to life and roam the house. Dee Dee and Dexter must get them before Mom and Dad find out.
Read MoreSchool Girl Crushed
Decxter and Mandark are both outperformed by a new girl attending the school, jealous, they become allies to deal with her.
Read MoreFather Knows Least
Dad gets fired from his job, and has to do the same job Mom does. He realises it isnt as easy as it looks.
Read MoreDexter the Barbarian
Dexter goes on a quest. His quest is to reach the bathroom before he explodes.
Read MoreTuber Time
When Dexter realises the power of the potato, he redesigns his lab to work on it.
Read MoreBabe Sitter
Dee Dee goes over to Mandark's house to baby sit him, and Mandark likes that idea.
Read MoreMountain Mandark
Mandark drops technology and starts being more in touch with nature.
Read More2Geniuses 2Gether 4Ever
Dexter decides its better if him and Mandark work together, although in the end Dexter does all the work while Mandark does nothing
Read MoreHeight Unseen
Dexter is tired of being short, since his old plan of growing himself didnt work, he decides to make everyone shorter than him.
Read MoreBygone Errors
This takes place in the future, where Old Man Dexter tells about his ""glory days"". And Old lady Dee Dee keeps on adding her opinions as well...
Read MoreFolly Calls
When Dee Dee accidentally chops off her pigtail, Dexter gives her some hair growth potion. Although when she uses it, her hair floods the entire house.
Read MoreVoice Over
When Dexter's Computer gets Laryngitus, Dexter must find a replacement voice for her.
Read MoreThe Blonde Leading the Blonde
Dexter refuses to see that blonde's have more fun, so he dyes Dee Dee's hair to prove it.
Read MoreComic Stripper
Dexter finds out that all of Mandark's plans are taken from a comic book. This way, he can get ready.
Read MoreDexter's Wacky Races
Dexter, Monkey, The Justice Freinds, Dee-Dee, her imaginary freind Coosie, Mandark, his parents, and Dexter's Parents participate in a cross-country race
Read MoreThe Lab of Tomorrow
Monkey narrates a documentry of the future of Laboratories and sciences.
Read MoreChicken Scratch
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Garage Sale
Dexters parents accidentally sell Dexter's latest invention, and it is bought by Mandark.
Read MoreThey Got Chops
Dee Dee starts layin' down the Judo on Dexter, then Dexter learns how to fight back.
Read MorePoetic Injustice
Dexter falls in love with a new girl at his school, but decides to impress her with poetry rather than science.
Read MoreComedy of Feathers
When Dee Dee sees an Ostrage at the Zoo, she wants one of her own as a pet.
Read More