Falkner (anime)

Falkner is a Gym Leader appearing in Pokémon: The Johto Journeys.

Season 3: The Johto Journeys
Falkner is the Gym Leader of Violet City, who dedicated his life to train Flying-type Pokémon. After rescuing Pikachu from Team Rocket, he took Ash, Misty and Brock to the Gym, where Ash challenged him to a match. He used Hoothoot, Dodrio and Pidgeot to battle Ash's Pokémon, but was defeated by Charizard's Seismic Toss.

Season 4: Johto League Champions
Falkner, among other Johto Gym Leaders, appears in the opening scene of Pokémon: Johto League Champions.

Season 5: Master Quest
When Team Rocket stole Ash's badges, Ash remembered his fights with the Johto Gym Leaders, as his Pokémon were responsible for winning those badges.