Nobutoshi has done the following roles in audio drama.

Dennou Sentai Voogie's Angel [CD]	Leon Cougar
Hiza no Ue no Partner [CD]	Kobayashi Shogo
Macross 7 CD Cinema [CD]	Basara
Marriage -Kekkon [CD]	Nakamoto Shou
Money Idol Exchanger [CD]	Won
Money Idol Exchanger [CD]	narration
Sotsugyou Cross World All Stars On Stage [CD]	Nakamoto Shou
Sotsugyou M Oretachi ni Makasero [CD]	Nakamoto Shou
Sotsugyou M+ (Male Graduation Plus) Final Drama CD -Oretachi no Sotsugyou- [CD]	Nakamoto Shou
Susume! Super Angels! [CD]	Kuga Leo