Hikaru has done the following roles in audio drama.

Almighty x10 [CD]	?
Bishoujo Senshi Sailor Moon [CT]	Ginga Seijuurou
Cage [CD] {II}	Cage
Chou Kousoku Gran Doll [radio]	Freedsharlf
Choujin Gakuen Goukaizer [CD]	Kasshu Gyuustern
Clannad [CD]	Yoshino Yuusuke
Cobalt & Super Fantasy Voice Message CD [CD] {Seiza series}	?
Crescent Noise [CD]	Kisaragi Ran
Gundam Wing [radio]	Heero Yuy
Hanasaki Komachi Girls [CD]	Mori Rantarou
Heian Mato Karakuri Kidan [radio]	Fujiwara Korechika
Hiza no Ue no Partner [CD]	Kaimu
Kamaitachi no yoru [CD]	Yajima Tooru
Kami-sama ga Ippiki [CD, Radio]	?
Lunatic Dawn III [CD]	Ken
MAPS [CD]	Gen
Marriage -Kekkon [CD]	Arai Tougo
Seimaden [CD]	Mallion
Slayers Extra [CD]	Zelgadis
SM Girls Saber Marionette J [CD]	Faust
SM Girls Saber Marionette R [CD]	Face
Sotsugyou Cross World All Stars On Stage [CD]	Arai Tougo
Sotsugyou M Oretachi ni Makasero [CD]	Arai Tougo
Sotsugyou M+ (Male Graduation Plus) Final Drama CD -Oretachi no Sotsugyou- [CD]	Arai Tougo