I notice many fans who think that Red is Ash or Kris is Marina or Gold/Ethan is Jimmy e.t.c.
They're not the same characters. They have different pokemon team!
I notice that Newten added some Crystal pictures on Marina's gallery and another user thinks that Jimmy and Gold are the same characters and put a Jimmy picture on Gold's page! Some fans thinks that Ash's first video game appearance is Pokemon Yellow because this game based on anime. The player character from this game is Red not Ash.