>>95412282In the first season their individual characteristics weren't as well defined and they did things that would be considered OOC in the show later. Double-D is often shown openly laughing at other kid's misfortune, seems to have no qualms about the scams or Eddy being a dick to smaller kids and retards etc.
Later in the show he's shown to get along with most of the kids fine when Ed or Eddy isn't around.
