Voice actor.
h4. Characters voiced
* Aaroniero Arruruerie and Shiba Kaien (Bleach)
* ]] (">Toaru Majutsu no Index)
* (Fate/Grand Order)
* [[Doi_Hansuke_(Rakudai_Ninja_Rantarou)
*_">Doi Hansuke">Fate/Grand Order)
* [[Doi_Hansuke_(Rakudai_Ninja_Rantarou)
*_ (Genshin Impact)
* [[Duo_Maxwell_(Gundam_Wing)
*_Embryo_(Cross_Ange)
*_Henmi_Kazuo_(Golden_Kamuy)
*_Hoshizora_Hiroshi_(Smile_Precure!)
*_Kibutsuji_Muzan_(Kimetsu_no_Yaiba)
*_Loni_Dunamis_(Tales_of_Destiny_2)
*_Matsuda_Kousaku_(YAWARA_a_Fashionable_Judo_Girl)
*_Medama_Oyaji_(human)_(Kitarou_Tanjou:_GeGeGe_no_Nazo)
*_Momotaros_(Kamen_Rider_Den-O)
*_">Duo Maxwell">Genshin Impact)
* [[Duo_Maxwell_(Gundam_Wing)
*_Embryo_(Cross_Ange)
*_Henmi_Kazuo_(Golden_Kamuy)
*_Hoshizora_Hiroshi_(Smile_Precure!)
*_Kibutsuji_Muzan_(Kimetsu_no_Yaiba)
*_Loni_Dunamis_(Tales_of_Destiny_2)
*_Matsuda_Kousaku_(YAWARA_a_Fashionable_Judo_Girl)
*_Medama_Oyaji_(human)_(Kitarou_Tanjou:_GeGeGe_no_Nazo)
*_Momotaros_(Kamen_Rider_Den-O)
*_ (Ranma 1/2)
* [[Rau_Le_Creuset_(Gundam_SEED)
*_Rey_Za_Burrel_(Gundam_SEED_Destiny)
*_Scorpio_Milo_(Saint_Seiya)
*_Senketsu_(Kill_la_Kill)
*_Ultraseven,_Ultraman_Leo_(Ultraman_Chou_Toushi_Gekiden)
*_Umino_Iruka_(Naruto)
*_">Rau Le Creuset">Ranma 1/2)
* [[Rau_Le_Creuset_(Gundam_SEED)
*_Rey_Za_Burrel_(Gundam_SEED_Destiny)
*_Scorpio_Milo_(Saint_Seiya)
*_Senketsu_(Kill_la_Kill)
*_Ultraseven,_Ultraman_Leo_(Ultraman_Chou_Toushi_Gekiden)
*_Umino_Iruka_(Naruto)
*_ (">Dissidia Final Fantasy)
* (HUNTER x HUNTER.2011)
Not to be confused with [[Seki Tomokazu.
h4. External links
* Wikipedia: Toshihiko Seki