NT's created those characters, they were not modelled (their personalities given) to express a real type of person, they might make characters with an extreme that LOOKS like aspergers, but funnily enough most "speculated" aspie characters tend to have an extreme which is the opposite to what a REAL aspie is (in pattern/structure/image)
the closest imaginary character i know and believe to have aspergers is Chief Inspector Jauc Clouseau, from the original Pink Panther movies, he is terribly clumsy, stupid to the eye, but "coincidentally" smart enough to be a good detective overall, also the enemy of Clouseau is a fellow Inspector who reminds me of an NT, he hates Clouseau because of his clumsyness and goes insane trying to figure out why he is soo lucky, the fact is despite his slip ups, he is very smart