Jimmy is from New Bark Town in the Johto region and is the anime version of Gold. He is familiar to Ash Ketchum which he battles against trainers which have an advantage over his Pokémon so he will learn more he can win in different ways. He has a catchphrase after he has won a battle: "you rock, you rule!". His starter Pokémon was a Cyndaquil which he had obtained from Professor Elm. He has two friends who are from New Bark Town called Marina and Vincent. Jimmy has a crush on Marina because of The Legend of Thunder movie when he was talking to Vincent on the video phone, Vincent was trying to make Jimmy admit he likes Marina so he hung up on him. Jimmy also likes to battle one on one with his trusted Typhlosion.
Jimmy's appearance in the Legend of Thunder! episode arc is he has a yellow and black hat backwards, he wears a red jumper and he wears yellow shorts.
- Jimmy is pursued by Attila and Hun the same way Jessie, James and Meowth pursue Ash.
- Jimmy is based on Ethan, the main playable male character in the Gold, Silver, HeartGold and SoulSilver.