Koichi Tochika is a seiyu born in 1971 in Osaka, and as a consequence, some of his roles have TheIdiotFromOsaka or people with KansaiRegionalAccent written on their heads, though Hazel from [[{{Saiyuki}} Saiyuki Reload Gunlock]] is an exception from the former trope. Tochika is also known for his role as the voice actor of Sumisu-san, or "Mr Smith" on the audio CD of the text book series ''Japanese For Busy People'', meaning that he can play the typical {{Eagleland}} tourist, too.

!!Notable for:

* Lance in ''Manga/ZeroSevenGhost''
* Blindo in ''Franchise/OnePiece''
* Check Mate and Ilioukhine in ''Anime/KinnikumanNisei''
* Yu Himura in ''[[VisualNovel/EfAFairyTaleOfTheTwo Ef - a tale of memories]]''
* En Daidouji in ''Anime/BraveCommandDagwon''
* Griffin Minos in ''Manga/SaintSeiya''
* Hawkmon in ''Anime/DigimonAdventure02''
* Hayato Marikoji in ''Anime/{{Himawari}}''
* Hazel Grouse in ''Manga/{{Saiyuki}}''
* I'm Sorry Masked Man and Nightmare in ''Manga/BoboboboBobobo''
* Jenai in ''Manga/ChronoCrusade''
* Kotaro Kakinouchi in ''Manga/MythicalDetectiveLokiRagnarok''
* Mirai in ''Manga/MirumoDePon''
* Neji Hyuga in ''Manga/{{Naruto}}''
* Peta in ''Manga/{{MAR}}''
* Raiha in ''Manga/FlameOfRecca''
* Ryō Shirogane in ''Manga/TokyoMewMew''
* Ryu Amakusa in ''Manga/TanteiGakuenQ''
* Sentaro Kotsubaki and Ilforte Granz in ''Manga/{{Bleach}}''
* Shiba (younger) in ''[[Manga/RaveMaster Groove Adventure Rave]]''
* Taishi Kuhonbutsu in ''ComicParty''
* Tigatron/Tiger Falcon in ''WesternAnimation/BeastWars''
* Tommy Parsy, Mr. Dog, Coach, and Ruby Green in the ''VideoGame/SnowboardKids'' series
* Vampaira in ''Series/RescueSentaiGoGoFive''
* Wei Fei Li in ''Manga/AyashiNoCeres''
* Yanma in ''Series/BFighterKabuto''
* Yōsui in ''Manga/FushigiYuugi'' OVA 2
* Dai-Goyou in ''Series/SamuraiSentaiShinkenger'', [[VerbalTic goyou de!]]
* Lt. Nakamura in ''EurekaSevenAO''

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