Youko has done the following roles in audio drama.

Dog Days [CD]	Briocche Darkian
Haiyore! Nyaruko-san [CD]	Kurei Tamao
Ichiban Ushiro no Daimaou -anime cast- [CD]	Hattori Junko
Infinite Stratos [CD]	Shinonono Houki
Ore Twintail ni Narimasu [CD]	Iisuna Anko (Tail Black)
Rou Kyuu Bu [CD]	Nagatsuka Saki