Toshiyuki has done the following roles in audio drama.

Aika [CD]	Nishioka
Aozora Shoujotai [CD]	Akizuki Kazuaki
Battle Skipper [CD]	Toudou
Chou Kousoku Gran Doll [radio]	senpai
Double Call [CD]	?
GS Mikami Gokuraku Daisakusen!! [CD]	Pete
Hanasaki Komachi Girls [CD]	Natsukawa Takashi
Heian Mato Karakuri Kidan [radio]	Fujiwara Michinaga
Houshin Engi [CD]	Kou Tenka
Kouryuu no Mimi [CD]	Natsume Kirouemon
Kuro Kami no Captured [CD]	Captured
Mahou Shoujo Fancy CoCo [CD]	Vodka Russian
Megami Ibunroku Persona [CD]	Nanjou Kei
Over Rev! [CD]	Takeuchi Takao
Shounen Onmyouji: Kazane hen [CD]	?
Suehiro Shoutengai Drama CD I -Concerto- [CD]	Amase Keiichi (protagonist)
Suehiro Shoutengai Pre-Drama CD -Prelude- [CD]	shujinkou
Unjou Roukaku Kidan [CD]	Karin