Dexter

Dexter is the main character and protagonist of Dexter's Laboratory. He is a boy 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.

Appearance
Dexter is a very short young boy who has curly red hair that was passed down to him from his mother. He wears a pair of glasses that appear semi-circular at normal times, but when he widens his eyes, the tops of them round out. Dexter wears a little white lab coat with black buttons on it. He also wears purple gloves, and a pair of black rubber zipper boots. Occasionally, he may or may not wear a pair of black pants that match his boots. He speaks with a Russian accent despite the rest of his family not having any accents.

Personality
Dexter is an extremely intelligent boy (a self-described "Boy Genius") who has been creating fantastic inventions since he was a baby. He considers Albert Einstein to be his greatest influence. He is normally in conflict with his sweet sister Dee Dee. Dexter, though highly intelligent, often fails at what he has set out to do when he becomes overexcited and makes careless choices.

He manages to keep the lab a secret from his clueless, cheerful parents, who amusingly never notice any evidence of the laboratory, even when it was right before their eyes. Despite coming from a typical all-American family, Dexter speaks with a Russian accent. Despite his great genius, Dexter is in fact very naive and occasionally very ignorant about certain subjects to the point where it seems like he lacks common sense, which clearly shows that despite his vast capabilities, Dexter is still a young and inexperienced child who lacks wisdom and experience.

Dexter also has a huge ego which often clouds his judgement and has caused him to make rash and often morally questionable decisions, such as attacking Santa Claus due to his refusal to accept that he was real until the end, letting the Earth be destroyed do his inability to compromise with Mandark and even attempting to destroy Dee Dee for taking away his dream of saving the future, despite her having no malicious intent. As shown in Ego Trip, as Dexter grew older, his personality went through numerous dramatic changes.

Trivia

 * Dexter's last name has never been revealed throughout the entire series.
 * He speaks with a Russian accent, although the rest of his family doesn't.
 * Dexter's age is never mentioned in the series, but according to the song "Love According to Dexter", Dexter is said to be 8 years old.
 * His astrological sign was first shown to be Capricorn in the episode "A Hard Day's Day," but the season 3 episode "Mind Over Chatter" lists his birthday as March 24, which would actually make him an Aries.
 * Although Dexter is the main character, there have been many episodes where he is not seen.
 * In the episode "Tribe Called Girl", Dee Dee said that Dexter had special needs, however whether she said this mockingly or if Dexter has an actual disorder remains uncertain.
 * In the episode "Go Dexter Go!", he says his favorite color is orange, but in a previous episode, he stated that his favorite color was blue.