Dee Dee (Dexter's Laboratory)

Dee Dee is the deuteragonist in the Cartoon Network series, . She is Dexter's blond-haired older sister. She was voiced by Allison Moore in Seasons 1 & 3, and by Kat Cressida in Seasons 2 & 4.

Bad Qualities

 * 1) She has the tendency to tease her brother, Dexter, for no discernible reason.
 * 2) She is extremely hyperactive and spends most of her free time just destroying or ruining Dexter's lab in various ways for her own enjoyment.
 * 3) She also tampers with her brother's inventions. Thus, she is the main reason her brother's inventions go awry all the time.
 * 4) There are a couple of episodes where she is arguably at her worst, evident when:
 * 5) *In the episode, “Dexter is Dirty”, when Dexter is tired of taking baths everyday whenever he gets dirty, he cloaks himself in rubber that makes him stay clean, but Dee Dee noticed he's very slippery uses him as a sled and makes him destroy the house in the process.
 * 6) *In the episode, “Now That's a Stretch”, when Dexter turns himself into a gum-like substance to reach to grab something tall, Dee Dee constantly assaults him, chews him like gum, and stretch him out. When Dexter tries to fool her by shapeshifting into their dad, Dee Dee later assaults their real dad by biting him, stomping on him, and pulled on his ears and Dee Dee doesn't get punished for this.
 * 7) *In “Framed”, she eavesdropped on Dexter and Douglas' conversation and humiliated them on the bus and mocked Dexter by wearing his glasses and breaks them and gets off scot-free for the rest of the episode.
 * 8) *In the episode, “Quiet Riot”, while Dexter tries to sleep after staying up all night working in his lab, she kept on interrupting him by making so many noises when she could have simply just left his bedroom, close the door to it, and go on about her day.
 * 9) *In the episode, “The Continuum of Cartoon Fools”, she keeps re-entering Dexter's lab no matter how many times he tried kicking her out.
 * 10) *In the episode, “Opposites Attract”, she kept touching Dexter in unsettling ways.
 * 11) *In the episode, “Remember Me?”, when Dexter gets amnesia, Dee Dee decides to play tricks on him by creating a whole new identity for him in her image, even going as far as to record it and show it to everyone at school.
 * 12) *In the episode, “They Got Chops”, she repeatedly assaults Dexter with her judo skills.
 * 13) Her singing in “Dee Dee Be Deep” is really ear-piercingly bad.
 * 14) She's hypocritical whenever Dexter goes into her room and messes with her stuff. For example, in the pilot episode "Changes", she becomes angry with Dexter after she found out that he had her doll in his lab for an experiment, presenting her hypocrisy.
 * 15) *She was also hypocritical in “Faux Chapeau” where she blames Dexter for selling the helmets that enlarged everyone's heads when she was the one who sold it to the public first and gave Dexter the idea to sell it in the first place.
 * 16) She crudely insults Dexter at times, such as calling him "dorky" or "four-eyes".
 * 17) There are also a handful of moments where she displays a high level of idiocy, such as when she thinks a certain type of animal is another type of animal (ex. “Jurassic Pooch”, “Techno Turtle”, and “Comedy of Feathers” just to name a few).
 * 18) *In the episode “Folly Calls”, is where her idiocy has hit rock bottom. Dexter gives her a potion to make her missing hair grow back. However, Dee Dee squirts too much of it in her hair, causing it to grow continuously and overflowing the household. At the end of said episode, she blames Dexter for everything that has happen even though it was clearly her own fault, and instead of thanking him for saving her life, she tells Dexter to not ever leave his inventions at the hands of the "idiotic", as there's no telling what can happen. Monkey logic, much?
 * 19) From, she got flanderized to become more and more idiotic, destructive, and annoying than she already was prior to Season 3.
 * 20) She barely gets punished for her actions and sometimes gets rewarded for the things she does, showing her "Karma-Houdini" status, while Dexter is often left to getting the short end of the stick.

Good Qualities

 * 1) She loves and cares for her brother deep down, despite how she treats him.
 * 2) She has been shown to actually be a very wise girl for her age who displays far better common sense than her brother and less naivety about subjects that Dexter is completely ignorant about. She also has a far better understanding of nature and inner peace than her brother as well as apparent knowledge of important biological and botanical subjects, being very familiar with the achievements of biologist and friar Gregor Wendell who even Dexter was completely ignorant of.
 * 3) Her friendship with Mee Mee and Lee Lee can be fun and entertaining.
 * 4) While she lacks Dexter's skills in technology and science, she has shown to posses a powerful imagination that can even bring imaginary creatures to life, and she can even travel to the imaginary world of Koosland and interact with imaginary creatures such as the Koosalagoopagoop (or Kossy for short). In Seasons 3 & 4, she is also made the creator of Koosland.
 * 5) Her design is decent (including in Seasons 3 & 4, though by then, it became almost off-modeled).
 * 6) She is decently portrayed sometimes.
 * 7) She does help Dexter at times.
 * 8) Some of her lines and catchphrases are decent.
 * 9) Dexter's Laboratory would likely not be as great as it is without her.