Morty (anime)

Morty is a Gym Leader appearing in Pokémon: Johto League Champions.

Season 4: Johto League Champions
He appeared when Ash, Misty and Brock went into the Burned Tower, to calm down the Ghosts, as it was their home. The following day, he fought against Ash in a gym battle and gave him the Fog Badge.

Season 5: Master Quest
When Ash returned to Ecruteak City, he saw Morty again, who was worried about the Burned Tower near Ecruteak City.