Bartholomew "Bart" Simpson is voiced by Nancy Cartwright (that's right, a woman!) and is Homer and Marge's only son on The Simpsons.  Bart is an underachiever and was definitely much more of a bad boy in th ebeginning seasons of the show.

Now, Bart, although he has not aged, has certainly matured as a character.  Do the Bartman people.

Bart Simpson Quotes

Mrs. Krabappel: Bart Simpson, you've had three months to do this project, you started 30 seconds ago.
Bart: Thank you, thank you.
Mrs. Krabappel: I'm not complimenting you. You've destroyed every ideal i've had about teaching since I saw To Sir With Love as a little girl.
Nelson: Haha, you're old.
Mrs. Krabappel: I saw it on video in the eighties.
Nelson: Outdated media, I stand by my "haha."

College?! Barber or clown?

Bart

The Simpsons Quotes

Bart: I'll go, disguised as you.
Lisa: What if he wants to hold hands?
Bart: I'm prepared to make that sacrifice.
Lisa: What if he wants a kiss?
Bart: I'm prepared to make that sacrifice.
Lisa: What if he
Bart: You don't want to know how far I'll go.

You know, you remind me of a poem I can't remember, and a song that may never have existed, and a place I'm not sure I've ever been to.

Grampa