So we found out last night that Stan’s hair is black. The first character to reveal his hair color was Cartman, two seasons ago in the “Charlie Manson” episode; his hair is brown. In the movie, Kenny’s hair proved to be blond. So I’m assuming, unless it’s been shown already (I have missed an episode here and there) that Kyle’s hair is red, like his mom’s.
I don’t know… I’m guessing it’s more like his dad’s hair. hmmmm… Now you got me thinking though.