The Simpson is the TV show whit more guest star in the history.
Paul and Linda McCartney made the dubbing of their characters whit one condition: Lisa will be vegetarian forever.
In the EE.UU, thera are more tan forty cities named Springfield.
All caracthers have four finghers (three fingers and the thumb) except Good and Jesús.
The character Krusty the clow is based in Matt Groening's father.