Dr. Yung is a character in The Mastermind of Mirage Pokémon.
Yung is the creator of the mirage system. He battled Misty using his Mirage Aggron. When he battled Ash Ketchum, the mirage system malfunctioned and was seemingly captured by Mirage Master. Professor Oak later reveals that Dr. Yung is Mirage Master. He disappears at the end of the special, however, without a trace.
Pokémon created through the mirage system
Mirage Aerodactyl (2x) *
Mirage Machamp (2x) *
Mirage Tropius (2x) *