User blog comment:Mr. Xemnas/Underrated villains that deserve popularity and more recognition/@comment-1895174-20130308222804/@comment-4651179-20130309194656

Well, Stan Lee didn't appear in Ghost Rider or Punisher because he didn't create them, so I don't think he appeared in CA:TFA just because he appeared in other Marvel movies, but because Stan was very important to Cap's history.