Naozumi has done the following roles in anime.

Digimon Adventure 02	Wormmon
Harukanaru toki no naka de -Hachiyoushou- [2004]	Inori
Kamikaze Kaitou Jeanne [1999-2000]	Minazuki Yamato
Kindaichi Shounen no Jikenbo [debut]	?
Sca-Red Rider XechS [2016]	Duesenberg