Let Me Hear Your Voice

Yudai Yamaguchi

Ryo Kaido / Younger Shinya

Yuki Mitsunaga

Natsuo Mikami (Ryo's boyfriend) / Akira Iida (Shinya's lover)

Kazuma Akabane

Sugita, manager

Yatsuhashi Saiko

Rena, groupie

Lemon Sugiura

Yoshie, Natsuo's girlfriend

Yumi Yoshiyuki

Suzuki

Kazu Itsuki

Shinya Kaido