Before The Heart Stop Five Minute!

Kouki Tanioka

Masao Den

Yuuhei Kurachi

Kyousuke Shida

Yukio Itô

Kensaku Shiraishi

Kenji Ohba

Shirou Akebono

Diane Martin

Diane Martin

Daisuke Ban

Makoto Jin

Naomi Hagi

Maria Nagisa

Chiyonosuke Azuma

General Tetsuzan Kurama

Shozo Iizuka

Satan Egos (voice)

Tōru Ōhira

Narrator

Masao Imanishi

Heart Monster (voice)

Yoshiharu Yabuki

Kenta

Kōichi Hayashi

Dr. Oosawa

Kōichi Yamada

Doctor

Teruo Nakayama

Kenta's father

Kumiko Masuda

Kenta's mother

Keiko Watanabe

Nurse

Keiko Abe

Nurse

Noriko Honjo

Nurse