Nobuyuki has done the following roles in audio drama.

Choujin Gakuen Goukaizer [CD]	Kaiza Isato
Dennou Sentai Voogie's Angel [CD]	Myer/Strikemyer
Digital Ange Dennou Tenshi SS [radio]	Laor
Jungle de Ikou [CD] {episode 3}	student B
Kami-sama ga Ippiki [CD, Radio]	? (younger brother)
Little Princess: Marl Oukoku no Ningyouhime 2 [CD]	Randy Raffine
Macross Generation [CD]	Volf
Mahou Shoujo Fancy CoCo [CD]	Salty Dog
Ore Twintail ni Narimasu [CD]	Swan Guildy
Susume! Super Angels! [CD]	Strikemyer
Susume! Super Angels! [CD]	Myer
Twilight Syndrome [CD]	?
Wedding Dress ni Akai Bara [CD]	Midorikawa Junji