Kellyn is a Pokémon Ranger in Pokémon Ranger: Shadows of Almia.
Plot Overview
In the Games
He can played in Shadows of Almia if you chose to be a boy. He is actually from the Fiore region but he hopes to become a Pokémon Ranger that is why he moved to Almia. He is the youngest of the trio, at the age of 12. Keith is 17. Rhytimi is 14.
In the Anime
He appears in the Anime to aid Ash to help a Riolu that can use Aura Sphere. This Riolu is also in the game.