Vincent (in the Chronicles), Jackson (in the main series), is a character in the spin-off Pokémon Chronicles, and also appeared as a Pokémon Trainer who in the Silver Conference from the Johto region under the name Jackson. He received his first Pokémon, a Chikorita from Professor Elm.
Season EX: Chronicles
Vincent appears in the special episode The Legend of Thunder. He is the childhood friend of Jimmy and Marina. He has a crush on Marina and is Jimmy's rival.
Season 5: Master Quest
Jackson fought against Ash Ketchum in the Preliminary Round of the Silver Conference. Like Ash, he also owns a shiny Pokémon: Magneton. Their match ended in a draw with the final matchup being his Meganium and Ash's Bulbasaur.