Ikue Ôtani
— Pikachu / Sunnygo (voice)
Satomi Kōrogi
— Togepy / Little Brother Pichu (voice)
Yumi Tōma
— Big Brother Pichu (voice)
Rikako Aikawa
— Koduck (voice)
Keiji Fujiwara
— Usokkie (voice)
Megumi Hayashibara
— Gomazou (voice)
犬山イヌコ
— Nyarth (voice)
Katsuyuki Konishi
— Airmd (voice)
桃井はるこ
— Sohnano (voice)
西村ちなみ
— Waninoko (voice)
Nobuo Tobita
— Yomawaru (voice)
Yūji Ueda
— Hinoarashi / Sonans (voice)
Kappei Yamaguchi
— Barubeat (voice)
優香
— Narrator (voice)