
Acting
Ryoichi Tanaka (田中 亮一, Tanaka Ryōichi, born January 26, 1947) is a Japanese actor, voice actor and narrator from Suginami, Tokyo. His younger brother was Kazumi Tanaka. He is currently affiliated with Aoni Production.
He is most known for the roles of Akira Fudo/Devilman (Devilman), Nobita's teacher (Doraemon), and Cancer Deathmask (Saint Seiya).

Ultraman Mebius Side Story: Ghost Rebirth - STAGE II: The Emperor's Resurrection
as Mebius Killer (voice)

Ultraman Mebius Side Story: Ghost Rebirth - STAGE I: The Graveyard of Darkness
as Mebius Killer (voice)

Doraemon: Nobita and the Legend of the Sun King
as Teacher (voice)

Nobita's the Night Before a Wedding
as Teacher (voice)

Doraemon: Nobita and the Galaxy Super-express
as Principal (voice)

Spooky Kitaro: The Great Sea Beast
as Expedition Leader (voice)

Memories
as General Officer (voice)

Doraemon: Nobita's Three Visionary Swordsmen
as Teacher (voice)

Doraemon: Nobita and the Tin Labyrinth
as Sensei (voice)

Kamen Rider SD: Strange?! Kumo Otoko
as Kamen Rider V3 (voice)

Baki Hanma
as Warden (voice) · 12 ep.

Saint Seiya: Saintia Sho
as Cancer Deathmask (voice) · 1 ep.

Tiger Mask W
as Kentarou Takaoka (voice) · 38 ep.

Saint Seiya: Soul of Gold
as Cancer Deathmask (voice) · 13 ep.

Ultraman Mebius Side Story: Ghost Rebirth
as Mebius Killer (voice) · 2 ep.

Porphy's Long Journey
52 ep.

GARO
as Man in the Park · 1 ep.

Tokusou Sentai Dekaranger
as Tenkaonian Raja Namunan (voice) · 1 ep.

Koi Kaze
as Zensou Saeki (voice) · 13 ep.

Saint Seiya: The Hades Chapter
as Deathmask (voice) · 5 ep.
Dragon Ball: Curse of the Blood Rubies
1986