The animated special "The Mastermind of Mirage Pokémon" includes characters such as Dr. Yung (the Mirage Master), Ash, Misty, Professor Oak, May, Max, Brock, and Mirage Pokémon like Mirage Mew and Mirage Mewtwo, but does not feature a character named Pierre. A separate character named Pierre appears in the main Pokémon anime episode "Type Casting," collaborating with Marie to study Sudowoodo's type, though he has no connection to the special.