Kōji SEKI

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Cast in:
18if (TV) as Producer (ep 9)
Akiba's Trip: The Animation (TV) as Conglomerate Company Employee (ep 12)
Arifureta - From Commonplace to World's Strongest (TV 3) as Yue's Father (ep 14)
(The) Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too Far (TV) as Bandit C (ep 10); Knight C (ep 6); Noble (ep 5); Royal Knight B (ep 3); Sebas (ep 2)
As Miss Beelzebub likes it. (TV) as Laborer (ep 4); Lover Boy (ep 3); Waiter (ep 5)
BELLE (movie)
BLUELOCK (TV) as Reporter B (ep 2)
Boruto: Naruto Next Generations (TV) as Tsuzumi (ep 210)
Bucchigiri?! (TV) as Dr. Matsunaka (ep 7); Tailor Fukuzo (ep 3)
Case Closed (TV) as Ryoichi Doba (ep 1139); Security guard (ep 1128)
Catch Me at the Ballpark! (TV) as Kaiser (ep 6)
Chaos Dragon (TV) as Man B (ep 1)
Daily Lives of High School Boys (TV) as Basketball guy (ep 3); Boy B (ep 11); Habara's Older Brother
DAN DA DAN (TV) as Male Customer (ep 4); Male Teacher (ep 11); TV Station Producer (ep 3)
Death March to The Parallel World Rhapsody (TV) as Boido (ep 3)
Dragon Goes House-Hunting (TV) as Castle servant A (ep 12); Chimera (ep 5); Dwarf A (ep 2); Goblin B (ep 1); Mob B (ep 10); Mob hero C (ep 9); Monster B (ep 11); Onibi (ep 3); Shopkeeper (ep 6); Skeleton B (ep 7); Ten (ep 8)
Duel Masters King Max (TV) as Gayou God, Schumacher Star (ep 1); Sutton's Heart Painting (ep 16)
Duel Masters King! (TV) as Gayou God < Schumacher.Star > (6 episodes

eps 9-10, 14, 22, 28, 33

); King the Slotten 7 (ep 41.5)
(The) Elusive Samurai (TV) as Settsu no Chikaaki (ep 1)
Fena: Pirate Princess (TV) as Villager (ep 8)
Fluffy Paradise (TV) as Senior Vassal (ep 2)
Gintama' (TV 2/2011) as Renhō A (ep 235); Shinsengumi Member (ep 238)
Haikyu!! To The Top (TV 4) as Kai Akakura
Hatena Illusion (TV) as Bodyguard (ep 3); Group Leader (ep 10)
I Got a Cheat Skill in Another World (TV) (7 episodes

eps 1, 4-5, 8, 11-13

)
I've Been Killing Slimes for 300 Years and Maxed Out My Level (TV) as Customer E (ep 8)
ID: INVADED (TV) as Employee (ep 12)
(The) Idolm@ster SideM Wake Atte Mini! (TV) as MC
Invaders of the Rokujyōma!? (TV) as Daisaku (ep 10); Male student (ep 2)
"Ippon" Again! (TV) (ep 2)
Jujutsu Kaisen (TV 2) as Fumi's Father (ep 43)
Juni Taisen: Zodiac War (TV) as Acting Dojo Master (ep 9); Avatar Dark Blue (eps 5-6); Country A Bureaucrat (ep 4); Inspector (ep 8); Instructor (ep 12); Policeman A (ep 7); Soldier B (ep 10)
Kengan Ashura (ONA 2) as Kure Clan Member (ep 13)
Let This Grieving Soul Retire! (TV) as Greg Zangief
Let This Grieving Soul Retire! (TV 2) as Greg Zangief
Lost Song (ONA) as Pat (ep 12)
Magical Girl Site (TV) as Forensics Man (ep 8); Funeral Company Staff (ep 10); Lead Doctor (ep 3); PE Teacher (ep 4); Rainbow Sea Father (ep 9); Rescuer B (ep 5)
(The) Many Sides of Voice Actor Radio (TV) as Male fan (ep 7)
March comes in like a lion (TV 2) as Authorized Person 3 (ep 18)
Migi & Dali (TV) as Doctor (ep 11); Science Teacher (ep 13)
Mission: Yozakura Family (TV) as Battalion member (ep 15); Detective (ep 12); Voice (ep 14)
My Deer Friend Nokotan (TV) as Policeman (ep 11)
My Oni Girl (movie) as Head Clerk
Mysterious Disappearances (TV) as Yorumun fan (ep 10)
Namu Amida Butsu! -Rendai Utena- (TV) as Izakaya Manager (ep 5); Staff (ep 3)
NieR:Automata Ver 1.1a (TV) as Citizen of the Kingdom (ep 7); Machine life form (eps 4, 11); Priest (ep 10)
NieR:Automata Ver 1.1a (TV 2) as Machine life form (eps 19-20); Resistance member (ep 21)
A Ninja and an Assassin Under One Roof (TV) as Clerk (ep 9)
Nobunaga Concerto (TV) (ep 3)
Orb: On the Movements of the Earth (TV) as Knighthood (ep 22)
Outburst Dreamer Boys (TV) as Homeroom Teacher (eps 1, 4)
Overlord III (TV) as Arche's Father (ep 6)
Pandora in the Crimson Shell: Ghost Urn (TV) as Subordinate A (ep 10)
Phantom of the Idol (TV) as Cameraman (ep 8)
Pon no Michi (TV) as Furuta (ep 12)
Puniru is a Kawaii Slime (TV) as Academic Researchers (eps 2, 10)
(The) Quintessential Quintuplets (TV) as Teacher (ep 1)
Re:Monster (TV) as Fomorian (ep 10); Goblin (ep 6)
Remake Our Life! (TV) (ep 11)
(The) Rising of The Shield Hero Season 2 (TV) as Official A (ep 9)
(The) Rose of Versailles (movie 2025)
RPG Real Estate (TV) as Sea Lion Person (ep 2)
Saint Cecilia and Pastor Lawrence (TV) as Townspeople (ep 11)
Salaryman's Club (TV) as Company Store Employee (ep 6); Isuzu (eps 2, 4); Owner (eps 2, 4)
Sasaki and Peeps (TV) as Bureau Staff (eps 2, 5); Knight (ep 7)
Scott Pilgrim Takes Off (ONA) as Envy Fan #1 (ep 2); Lawyer (ep 2)
Sengoku Collection (TV) as Yamanaka (ep 11)
Shadowverse Flame: Seven Shadows Arc (TV) as Staff (ep 75)
Shomin Sample (TV) as Muscle corps (eps 1, 12)
Strike Witches (TV) as Soldier (ep 12)
Super Cub (TV) as Salesperson (eps 5, 9)
Sword Art Online The Movie - Progressive: Scherzo of Deep Night as Naijan
Sword Art Online the Movie -Progressive- Aria of a Starless Night
Sword Art Online: Alicization - War of Underworld (TV) as Goblin (ep 2)
Sword Art Online: Alicization - War of Underworld Part 2 (TV) as Technical Staff (ep 21)
Symphogear (TV) as Researcher A (ep 1)
Tales of Zestiria the X (TV 2) as Brewer (ep 13); Candidate (ep 21); Gatekeeper (ep 18); Soldier (5 episodes

eps 14-15, 17, 19-20

); Windriders mercenary (ep 16)
Tearmoon Empire (TV) as Man (ep 8); Merchant (ep 10); Priest (eps 2, 7); Soldier (ep 1)
Teogonia (TV) as Rag Village Soldier (ep 1)
Tohai: Ura Rate Mahjong Tohai Roku (TV) as Gallery (ep 2); Mahjong Parlor Clerk (ep 5); Mahjong Parlor Man (ep 3); Member (ep 21); Miyazaki (ep 17); Puppy Pattern (ep 25); Young Man at the Mahjong Parlor (ep 18)
Touken Ranbu Kai Kyoden (TV) as Military Commander (ep 6)
Tower of God: Workshop Battle (TV 3) (ep 17)
Trickster (TV) as Boss A (ep 8); Danei Hisao (ep 13); Ei Omagari (eps 11-12); Hoshi Minetani (eps 7, 15); Ivan (ep 18); Jou Tomii (ep 2); Keiichiro Tezuka (ep 3); Koji Totsuka (ep 14); Samon Takahashi (ep 10); Seiji Miyamae (ep 9); Seishi Minetani (ep 16); Toshifumi Kanda (eps 4-5); Umehito Yokoyanagi (eps 20-24)
Trigun Stampede (TV) (ep 6)
Try Knights (TV) as Rugby Team Member (ep 1)
Ulysses: Jeanne d'Arc and the Alchemist Knight (TV) as Captain (ep 1); Citizen A (ep 6); Domremy inhabitant (ep 2); Masked Man (ep 5); Mercenary A (e 4); Messenger (ep 7); Noble A (ep 3); Soldier A (ep 12); Yoshunaga Otome (ep 9)
Uma Musume: Cinderella Gray (TV) as Maintenance staff member (ep 3); Reporter (ep 11)
(The) Unaware Atelier Master (TV) as Dwarf (ep 10); Fenrir (ep 1); Red beans seller (ep 9)
Under Ninja (TV) as Male Student 3 (ep 10)
Urawa no Usagi-chan (TV) as Conductor (ep 11); Michijiro Nakayama (ep 9); Usagi's Father (ep 1)
Warlords of Sigrdrifa (TV) as Crepe Shop Owner (ep 3); Maitenance team member (ep 12); Makoto Oyama (eps 6-7, 11); Pilot (ep 1); Soichiro Takada (ep 2)
White Album (TV) as People (ep 12)
World Break: Aria of Curse for a Holy Swordsman (TV) as Bodyguard (ep 10)
Yashahime: Princess Half-Demon (TV) as Bird of Paradise (ep 16); Follower (eps 9, 20); Merchant (eps 5, 21-22); Official (ep 7); Old man (ep 4); Peasant (ep 17); Thug (ep 2); Vassal (eps 1, 19); Villager (eps 12, 14)
Yashahime: Princess Half-Demon - The Second Act (TV 2) as Apparition (eps 44-45); Chimimōryō (ep 25); Demon (ep 29); Fisherman (ep 26); Green demon (ep 36); Palanquin carrier (ep 30); Raccoon Dog (ep 46); Staff (ep 43); Stone creature (ep 31); Vassal (ep 32); Villager (eps 33, 48); Yokai (ep 44)
YATAGARASU: The Raven Does Not Choose Its Master (TV) as Door guard (ep 4); Stables man (ep 16)

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