text: Tartakovsky determined that Dexter should have an accent because the character "considers himself a very serious scientist, and all well-known scientists have accents." During one interview, Tartakovsky suggested that viewers should decide for themselves whether or not the character's accent is an affectation, saying that "[n]obody knows" whether the character is "pretending to be a German scientist" or is speaking naturally. Although Tartakovsky noted in a separate interview that Dexter's accent is not meant to denote any specific nationality, he revealed in a 2012 Reddit AMA that it was partially inspired by "a funny French accent" done by his college roommate.
  Tartakovsky drew inspiration from his experiences as an immigrant growing up in Chicago. He explained that, like Dexter, he had a "very thick accent" as a child—and even though he lived in a diverse neighborhood, children would tease him for this. Speaking with The Jewish Journal of Greater Los Angeles in 2001, Tartakovsky explained, "When I moved to America, I wanted to fit in and be American...We never tried to be too heavy-handed with Dexter's, but if you look at the underlying themes of the show, it's about a little kid trying to fit in." Tartakovsky noted that when he was a child, he was less confident than the character, telling The New York Times, "The one thing about Dexter, if he doesn't fit in, he'll start his own club. He's not afraid to be an outsider." With Dexter's Lab he continued the tradition of making "violent cartoons", explaining that "many people like them because they project themselves in the drawings and they laugh," while following the principles of older Hanna-Barbera cartoons.