Kappei has done the following roles in audio drama.

Aa Megami-sama [CD]	Morisato Keiichi
Beast of East [CD]	?
Fortune Quest Gaiden [CD]	Trap
God Save The Sugekomakun! Ultra soushingeki!! Sugekoma daisassen!? [CD]	Sugekoma Sugekoma
Hourai Gakuen no Hatsukoi! [CD]	Asahina Jun'ichi
Jungle de Ikou [CD]	Takuma
Kyuukyoku Parodius [CD]	Aitsu
Princess Quest [CD]	Gateau
RG Veda -Kyoujou Engoku hen- [CD]	Ryuu-ou
Rockman [CD]	Robo 1
Shadow Skill [CD]	Low
Twinbee Paradise [CD]	Light