Ryuusei has done the following roles in anime.

Alexander Senki/Reign	Dinocrates
Alien 9 [2001]	Bougu
Anpan-man	Baikin-man
Armitage III	Dankroad
Ashita no Joe 2	Carlos Libera
Bleach	Mayuri
Bleach	Kurotsuchi Mayumi
Captain	Kondoh
Chibineko Tom no daibouken -Chikyuu wo sukue! Nakamatachi [2014]	Bob
Devilman Lady/The Devil Lady	Jason Bates
Donkey Kong	Crashkey Kong
Dragonball Kai [2009-2010]	Freeza
Dragonball Z	Freeza
Dragonball Z {movie 5}	Cooler
Dragonball Z {movie}	Metal Cooler
Five Star Stories	Decors
Gakkou no Kaidan	Kaaya
Goddamn	Rob Row
Happy Moomin Family	Snif
Hiatari Ryoukou! [1987-1988]	Momiage
Ikano Kabamaru	Kabamaru
Kami Nomizo Shiru Sekai [2010]	Kodama-sensei
Kami Nomizo Shiru Sekai Megami-hen [2013]	Kodama Ichirou
Kindaichi Shounen no Jikenbo	Nakagami Reimei
King of Bandits Jing	Keel
King of Bandits Jing OVA (Jing in Seventh Heaven)	Kir
Kousetsu Hyaku Monogatari	Mataichi
Legend of Galactic Heroes	Mashungo
Montana Jones	Alfred
Nozomi Witches	Morino
One Piece [1999-]	Eric
Parasol Henbee [1989-1991]	Memosuke
Plastic Little	Roger
Psychic Force	Brad
Rokudenashi Blues 1993	Watanabe
Saint Seiya [1985-1989]	Kraken Isaac
Sore Ike! Anpan-man Dokin-chan no Doki Doki Calendar	Baikin-man
Sore Ike! Anpan-man Tsumiki-jou no Himitsu	Baikin-man
Space Patrol Hopper [debut]	Jun
Touch [1985-1987]	Nishimura Isami
Touch Arekara Kimi ha.. [1998]	Nishimura
Votoms	Murza
Weiss kreuz	Farfello
Wizardry OVA	Flack
Zerotester	Araishi Gou

Ryuusei has done the following roles in games.

BLEACH The 3rd Phantom [NDS]	?
Dog of Bay [PlayStation 2]	Paul
Dragon Ball FighterZ [PS4, XB1, WIN]	Freeza
Dragonball Z Budoukai [Playstation 2, Game Cube]	Freezer
Dragonball Z Sparking! NEO [PlayStation 2]	Freeza
Dragonball Z Ultimate Battle 22 [Playstation]	Freeza

Ryuusei has done the following roles in audio drama.

Psychic Force [CD, radio]

Brad Kilsten