Giichi Sugi
Sports Monster (voice)/Dr. Yoneyama
安藤一人
Koji Matsui
Izumi Ooyama
Koji Matsui's sister
鈴木正幸
Taiichi Jin
Hideki Komada
Reporter
Yoichi Kishimoto
Yasutaka Tanaka
佐川二郎
Father
Toshie Shoko
Mother
八百原寿子
Mitsuo Matsuda
Child
Kensaburo Kanba
Koji Hata
