Pokemon/Mickey Mouse

Version 1

 * Pikachu as Mickey Mouse
 * Buneary as Minnie Mouse
 * Turtwig as Donald Duck
 * Jigglypuff as Daisy Duck
 * Buizel as Goofy
 * Glameow as Clarabelle Cow
 * Piplup as Pluto
 * Mewtwo as Pete
 * and more

Version 2

 * Ash as Mickey Mouse
 * Gary Oak as Donald Duck
 * Brock as Goofy
 * Pikachu as Pluto (they're both yellow, and have names starting with "P")
 * May as Minnie Mouse
 * Misty as Daisy Duck
 * Giovanni as Pete
 * Togepi as Figaro
 * Professor Oak as Ludwig von Drake
 * Caroline as Clarabelle Cow

Version 3

 * Ash - Mickey Mouse
 * Misty - Minnie Mouse
 * Drew - Donald Duck
 * May - Daisy Duck
 * Brock - Goofy
 * Pikachu - Pluto
 * James - Pete
 * Officer Jenny - Clarabelle Cow
 * Professor Oak - Ludwig von Drake
 * Damian - Mortimer Mouse