Become Younger! Genius Brain

Satoshi Okita

Hokuto Dan

Junichi Haruta

Ryuu Hoshikawa

Kouji Unogi

Yousuke Shima

Yuu Tokita

Kousaku Nangou

Sayoko Hagiwara

Rei Tachibana

Junshi Shimada

Dr. Kyuutarou Yumeno

Takeshi Watabe

Ten-Tailed Emperor Aton (voice)

Masashi Ishibashi

General Kar

Kenju Hayashi

Prince Megiddo

Mari Kouno

Princess Chimera

Ritsuko Fujiyama

General Zenobia

Tōru Ōhira

Narrator

Toku Nishio

Armor Rose (voice)

Rikiya Iwaki

Taro Nakamura

Fumihiro Sato

Taro Nakamura (young)

Hidekazu Yamamoto

Taro Nakamura (child)