WordGirl: Becky Botsford

Becky Botsford a.k.a. WordGirl was born on the planet Lexicon, and as an infant accidentally wandered onto a spaceship, which was piloted by Captain Huggyface. While he was driving the spaceship, WordGirl woke and startled him, making them hit an asteroid and forcing him to crash land on Earth in order to save the both of them. However, neither of them have tried to return to Lexicon since. WordGirl was then adopted by Tim and Sally Botsford, who at that point had no children of their own (though later they had their own kid, T.J. Botsford, who would be her brother), and she was given the name "Becky." Captain Huggyface was also "adopted" as a pet and given the name "Bob." The downed spaceship remained in the same spot and would then be used as WordGirl's secret hideout. She grew up in a normal life, though she displayed her keen intelligence at an early age - she was found on the Botsford's doorstep as a baby reading their newspaper (even though in one flashback, she was found in the woods). Sooner or later, she took up the identity of WordGirl. She has the entire dictionary memorized and is able to define any given word at a moment's notice.

Sesame Street: Prairie Dawn

http://cartoonfeet.blogspot.com/2017/05/sesame-street-prairie-dawn.html

The Magic School Bus: Keesha Franklin

Keesha is the more level-headed and realistic student in the class. She is most often the most sarcastic one as well. Because of her skepticism, she usually argues with Ralphie, who tends to live in his imagination. She's also shown to be ambitious, but unlike Janet, another ambitious character, she will stop her pursuit when she realizes she's either wrong or putting her friends in danger.