Ryoichi Tanaka (田中 亮一 Tanaka Ryōichi) is a voice actor that affiliated to Aoni Production.
- Ultraman Tiga - Voices of Gobnu (Vaha) and TPC America staff (episode 35)
- Ultraman Mebius Gaiden: Ghost Rebirth - Voice of Mebius Killer (G) (Yapool)
- GI Joe: A Real American Hero - Dub voice of Cobra Commander
- The Transformers - Dub voice of Cobra Commander
- Devilman - Voice of Akira Fudo/Devilman
- Doraemon - Voice of Nobita's teacher
- Saint Seiya - Voices of Cancer Deathmask and Musca Dio
- Tiger Mask - Voice of Kentaro Takaoka/Yellow Devil
- Transformers: The Headmasters - Voice of Brainstorm
- Hokuto no Ken 2 - Voice of Jo
- Transformers: Super-God Masterforce - Voice of Lander
- Transformers: Victory - Voice of Blue Bacchus
- One Piece - Voices of Moore, Minister of the Left and Jorl
- His younger brother is the late Kazumi Tanaka, whose role in the Ultra Series was in Ultraman Graffiti: Wild! Ultra Country.
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