Dangerous Dexter

480i (4:3 SDTV) (2002-2004)
720p (16:9 HDTV) (2007-2010)


Fox Network


Genndy Tartakovsky

Executive producer(s)

Sherry Gunther (2002-2003)
Genndy Tartakovsky (2003-2010)


Candi Milo
Allison Moore (2002-2003; 2007-2008)
Kathryn Cressida (2003-2004; 2008-2010)
Jeff Bennett
Kath Soucie
Eddie Deezen

First aired

September 7, 2002 (original series)
November 24, 2007 (revival series)

Last aired

October 2, 2004 (original series)
January 2, 2010 (revival series)

"Dangerous Dexter" is an American comic science fiction animated television series created by Genndy Tartakovsky for Fox. Three pilots aired on Fox from 2001 to 2002; viewer approval ratings convinced the network to order a half-hour series, which ran for two initial seasons from September 7, 2002 to October 2, 2004. From November 24, 2007 to January 2, 2010, Fox revived the series for two more seasons, under Chris Savino and a different production team at Fox Studios. The show was produced by 3 Arts Entertainment and 20th Century Fox Television.


The series revolves around Dexter (voiced by Candi Milo), a bespectacled boy-genius who possesses a secret laboratory hidden behind a bookcase in his bedroom. The laboratory is filled with Dexter's inventions and can be accessed by speaking various passwords or by activating hidden switches on Dexter's bookshelf (e.g. pulling out a specific book). Though highly intelligent, Dexter often fails at what he has set out to do when he becomes overexcited and makes careless choices. Although he comes from a typical all-American family, Dexter speaks with a thick accent of indeterminate origin. Candi Milo described it as "an affectation, some kind of accent, we're not quite sure. A small Peter Lorre, but not. Perhaps he's Latino, perhaps he's Russian. He's a scientist; he knows he needs some kind of accent." Genndy Tartakovsky explained, "He considers himself a very serious scientist, and all well-known scientists have accents."

Dexter manages to keep the lab a secret from his clueless, cheerful Mom (voiced by Kath Soucie) and Dad (voiced by Jeff Bennett), who never take notice of it. However, he is frequently in conflict with his hyperactive older sister, Dee Dee (voiced by Allison Moore in seasons 1 and 3; Kat Cressida in seasons 2 and 4). In spite of Dexter's advanced technology, Dee Dee eludes all manner of security, and once inside her brother's laboratory, she delights in playing haphazardly, often wreaking havoc with his inventions. Though seemingly dim-witted, Dee Dee often outsmarts her brother and even gives him helpful advice. For his part, Dexter, though annoyed by his intrusive sibling, feels a reluctant affection for her and will come to her defense if she is imperiled.

Dexter's nemesis is a rival boy-genius from his school named Susan "Mandark" Astronomonov (voiced by Eddie Deezen). Just like Dexter, Mandark also has his own laboratory, but his schemes are generally evil and designed to gain power while downplaying or destroying Dexter's accomplishments. In the revival seasons, Mandark becomes significantly more evil, becoming Dexter's enemy rather than his rival and his laboratory changing from brightly-lit with rounded features to gothic-looking, industrial, and angular. Because Dexter's inventions are often better than his, Mandark tries to make up for this by stealing Dexter's plans. Mandark's weakness is his love for Dee Dee, though she ignores him and never returns his affections.


Original run

Dangerous Dexter premiered on Fox on September 7, 2002. The series went on hiatus in 2004 after two seasons, with the second season lasting 39 episodes.


The revival episodes featured revised visual designs and sound effects, recast voice actors, continuity shakeups, and the transition from 480i (4:3 Standard-definition television), which was used in the first two seasons and "Ego Trip", to 720p (16:9 High-definition television), which was used permanently beginning with the third-season premiere, entitled "Streaky Clean", which aired in 2007.


Allison Moore, a college friend of Tartakovsky, was cast as Dee Dee. She left the show after the first season because she was no longer interested in voice acting. The role was subsequently recast with Kat Cressida. In season three, Moore briefly returned as Dee Dee's voice before Cressida once again assumed the role for season four.



Dexter (voiced by Candi Milo) is a 12-year-old genius who has a secret laboratory. His intelligence makes him the brains of the family and he is one of the world's greatest inventors, having created countless weird and amazing machines and experiments. He is always working on new inventions and creations every day, but his sister Dee Dee is always breaking into his lab and destroying his work. The daily events surrounding Dexter's life mainly revolve around his relationship with his sister and everything that happens between the two.

Dee Dee

Dee Dee (voiced by Alison Moore (Season 1 & 3), Kathryn Cressida (Season 2 & 4)) is Dexter's 15-year-old sister, who is mostly seen destroying or ruining Dexter's lab in various ways. The daily events surrounding Dee Dee's life mainly revolve around her relationship with her brother and everything that happens between the two. Though she was shown to get hypocritically angry when she found that Dexter had been in her room and messed with her stuff. Dee Dee also loves ballet, puppies, unicorns, playing dolls with her friends, messing around in Dexter's laboratory and generally depicts all the stereotypes concerning normal girl activities. Dee Dee has a great love and fascination for buttons to the point that her catch-phrase is "Oooooooh, what does this button do?". She rarely wears her full length of hair down except on rare occasions, mostly when sleeping, preferring to keep them in their recognizable style.


Mom (voiced by Kath Soucie) is Dexter and Dee Dee's 39-year-old red-haired mother. She is an everyday house mom as well as a Germ-o-phobe. She always wears a pair of yellow rubber gloves and is mostly seen keeping things clean around the house. She is a very busy mom who is seen doing lots of other work around the house as well.


Dad (voiced by Jeff Bennett) is Dexter and Dee Dee's 44-year-old blonde father. He loves bowling, golf, fishing, and has an unnatural affinity for his wife's muffins, of which she can expertly create (according to him, the muffins are the reason he married Mom, though this may have been a spur-of-the-moment remark, since he desperately wanted the muffins at the time).

Mandark Astronomonov

Susan "Mandark" Astronomonov (voiced by Eddie Deezen) is the 19-year-old main antagonist in Dangerous Dexter. He is Dexter's rival and later mortal nemesis who often seeks to destroy both Dexter and his lab to prove once and for all that he is the superior genius. He has extreme romantic feelings for Dee Dee despite her having no interest in him.


Main article: List of Dangerous Dexter episodes

International broadcast


  • Fox (2002-2010; 2014-2017 (reruns))
  • Adult Swim (2004-present)
  • TBS (2013-present)








  • Volume 1 (April 2, 2006)
  • Ego Trip (August 8, 2007)
  • Greatest Adventures (November 28, 2007)
  • Season 1 (November 11, 2016)
  • Season 2: Vol 1 (November 18, 2016)

Video Games

External links

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