At 25 years old, the TV show [i]Arthur[/i] is the second longest running cartoon after [i]The Simpsons[/i]. Its common in cartoons to have women voice young boys. [i]Arthur[/i] does the extreme opposite. During the original casting, the show runners felt the girls trying out for the part of Arthur's younger sister DW kept coming off as too sweet. They eventually asked one of the boys trying out for Arthur to read her lines. They felt his reading added a level of grit that better fit the character's tomboyish and rough around the edges personality. The character has been voiced exclusively by boys ever since.