Un joven Ash Ketchum se encontrará con un indisciplinado Pikachu.
 | Unshô Ishizuka | Narrator / Professor Okido |
| Rica Matsumoto | Satoshi |
| Sarah Natochenny | Ash Ketchum / Delia |
| Megumi Hayashibara | Musashi |
| Shin'ichirô Miki | Kojiro |
| Inuko Inuyama | Nyarth |
| Ikue Ôtani | Pikachu |
| Justin Anselmi | Additional Voices |
| Rebecca Becker | Additional Voices |
| Sam Black | Metapod / Additional Voices |
| Kate Bristol | Pikachu / Young Sorrel |
| James Carter Cathcart | James / Meowth / Professor Oak |
| Arata Furuta | Bonji |
| Nathalie Gorham | Additional Voices |
| Kyôko Hikami | Erika |
