Ash Ketchum is a Pokémon trainer and a good friend of Kids World's, and Ryan Mitchell (Foster) also met Ash's other friends Pikachu, Misty, Togepi and Brock. They first met Ash in Kids World's Adventures of Pokémon: The First Movie, and since then he has appeared in Kids World's future adventures as a guest character. His prowess in Pokémon Training and his courage have saved the day countless times, especially with his best friend, Pikachu. He and Pikachu are the founders and leaders of the Ash's Adventures Team.
- He is voiced by Veronica Taylor (1998-2006) and Sarah Natochenny (2006-present).
- Ash made his first guest appearence in a Kids World crossover in Kids World's Adventures of Mulan, The Secret of NIMH, Star Wars saga, The Chronicles of Narnia: The Lion, the Witch and the Wardrobe, Hook, Atlantis: The Lost Empire, Ghostbusters II, Teenage Mutant Ninja Turtles, Teenage Mutant Ninja Turtles 2: The Secret of The Ooze, Teenage Mutant Ninja Turtles 3, Home on the Range, Willow, Aladdin, The Muppet Movie, The Secret of Kells, Space Jam, Gremlins, The Land Before Time II: The Great Valley Adventure, Back to the Future, 3 Ninjas, The Karate Kid, Part II , The Adventures of Milo & Otis, The Boy Who Could Fly, 101 Dalmatians, The Princess and the Frog, Snow White and the Seven Dwarfs, Fantasmic!, The Haunted Mansion, Plus Many More!