Ryōichi Tanaka
is a Japanese actor and narrator. His late younger brother Kazumi Tanaka (田中 和実, August 11, 1951 - December 20, 2007) was also a voice actor. Tanaka is currently affiliated with Aoni Production.He is most known for the roles of Akira Fudo (''Devilman''), Nobita Nobi's teacher Sensei (''Doraemon''), and Cancer Deathmask (''Saint Seiya''). Provided by Wikipedia