Milhouse

Milhouse Mussolini Van Houten is a recurring character in The Simpsons and a minor character in The Simpsons Movie. He is a ten year old boy and Bart Simpson's best friend. As the only child of Kirk and Luann Van Houten, Milhouse's most distinctive physical traits are his blue hair, big nose and extreme nearsightedness (depicted by very small eyes), requiring thick glasses to correct. Being eyed as a nerd, he has regular intelligence but somewhat poor social skills. Although devious in his own way, Milhouse is quite gullible, which is why he is often led into trouble by Bart, who is not shy about taking advantage of the other's naïveté. Milhouse serves as the school president of the Springfield Elementary from 2004 to 2005.

When Milhouse gets irritated at Bart, he says "I'm only three months younger than you". Bart was born on either February 23 April 1, so that means Milhouse was born in May to July (most likely May 23 or July 1, since he doesn't mention how many days younger he is than Bart).