Arnold is born with birth defects, he was born with an over sized head, hands, and feet. He was also born with ten more teeth than normal. His body was also out of proportion.
Arnold's hobbies are basketball, drawing cartoons, and reading comics.
Arnold is a dopey type of character, he has low self esteem but he makes bold decisions that change lots.
Arnold wants to be an architect with his girlfriend, Penelope.
Arnold wants to fit in with all the Reardan kids so he tries to act like he isn't poor.