Shinichirou has done the following roles in audio drama.

Angel Sanctuary [CD]	Katan
Aozora Shoujotai [CD]	Isurugi Takuya
Barbarian Quartetto [CD] {Volume 2}	?
Bounty Sword [CD]	Roger
Cage [CD] {III}	Cage
Cobalt Tokimeki Drama CD Remix [CD]	?
Dancing Whispers [CD]	Mizu no Alkstoi
Kimi dake wo Mitsumeterua [CD]	Katori Shirou
Megami Paradise [CD]	shito
Planet Ladder [CD]	Seu
Tatoeba konna love song [CD] {Vol.1}	student
Torneco no Bouken [CD]	Prince
Utahime [CD]	Okamoto Hisanari
Vampire Hunter [CT]	Garon
Wedding Peach [CD]	Yanagiba Kazuya
Weiss Kreuz [CD]	Youji