
Koji Seki
Acting
Biography
Koji Seki (関 幸司, Seki Kōji, born November 25, 1982) is a Japanese voice actor from Saitama Prefecture who is affiliated with Raccoon Dog. He graduated from Pro-Fit Voice Actor Training School and joined the agency Pro-Fit. On April 1, 2022, he transferred to Raccoon Dog.
Known For

Yuji Itadori is a boy with tremendous physical strength, though he lives a completely ordinary high school life. One day, to save a classmate who has been attacked by curses, he eats the finger of Ryomen Sukuna, taking the curse into his own soul. From then on, he shares one body with Ryomen Sukuna. Guided by the most powerful of sorcerers, Satoru Gojo, Itadori is admitted to Tokyo Jujutsu High School, an organization that fights the curses... and thus begins the heroic tale of a boy who became a curse to exorcise a curse, a life from which he could never turn back.
JUJUTSU KAISEN

A spy, an assassin and a telepath come together to pose as a family, each for their own reasons, while hiding their true identities from each other.
SPY x FAMILY

After the party of heroes defeated the Demon King, they restored peace to the land and returned to lives of solitude. Generations pass, and the elven mage Frieren comes face to face with humanity’s mortality. She takes on a new apprentice and promises to fulfill old friends’ dying wishes. Can an elven mind make peace with the nature of life and death? Frieren embarks on her quest to find out.
Frieren: Beyond Journey's End

This is a gentle tale about people trying to regain something. And it is a tale of battle. Rei Kiriyama had lost his family in an accident when he was young. Now he is a 17-year-old pro shogi player who is burdened with deep loneliness. Rei lives alone in an old town in Tokyo, but after becoming acquainted with three sisters, Akari, Hinata and Momo, he begins to change little by little...
March Comes In Like a Lion

Inspired by a small-statured pro volleyball player, Hinata creates a volleyball team in his last year of middle school. Unfortunately the team is matched up against the "King of the Court" Tobio Kageyama’s team in their first tournament and inevitably lose. After the crushing defeat, Hinata vows to surpass Kageyama After entering high school, Hinata joins the volleyball team only to find that Tobio has also joined.
Haikyu!!

In the near future, a Virtual Reality Massive Multiplayer Online Role-Playing Game (VRMMORPG) called Sword Art Online has been released where players control their avatars with their bodies using a piece of technology called Nerve Gear. One day, players discover they cannot log out, as the game creator is holding them captive unless they reach the 100th floor of the game's tower and defeat the final boss. However, if they die in the game, they die in real life. Their struggle for survival starts now...
Sword Art Online

In a bet to prove whether ghosts or aliens exist, two high schoolers face terrifying paranormal threats, gain superpowers and maybe even fall in love?!
Dan Da Dan

This anthology of animated shorts from around the world celebrates the mythos of Star Wars through unique cultural lenses.
Star Wars: Visions

In feudal Japan, half-demon twins Towa and Setsuna are separated from each other during a forest fire. While desperately searching for her younger sister, Towa wanders into a mysterious tunnel that sends her into present-day Japan, where she is found and raised by Kagome Higurashi’s brother, Sota, and his family. Ten years later, the tunnel that connects the two eras has reopened, allowing Towa to be reunited with Setsuna, who is now a demon slayer working for Kohaku. But to Towa’s shock, Setsuna appears to have lost all memories of her older sister
Yashahime: Princess Half-Demon

Taiyo Asano has been on his own ever since his parents died and the only one who seems to care for him is his childhood friend and classmate, Mutsumi Yozakura. But Mutsumi has a secret—she is the head of a family of spies! And on top of that, her brother Kyoichiro is dangerously protective of her! To stop Kyoichiro from killing him, Taiyo and Mutsumi must take the ultimate leap—marriage! Because in the Yozakura family, family cannot kill family.
Mission: Yozakura Family

High school soccer players from across Japan gather for a controversial project designed to create the best — and most egoistic — striker in the world.
BLUE LOCK

Reach the top, and everything will be yours. At the top of the tower exists everything in this world, and all of it can be yours. You can become a god. This is the story of the beginning and the end of Rachel, the girl who climbed the tower so she could see the stars, and Bam, the boy who needed nothing but her.
Tower of God

Fuutarou Uesugi is a poor, antisocial ace student who one day meets the rich transfer student Itsuki Nakano. They argue but when Uesugi realizes he is to be her tutor, he tries to get on better terms. While trying to do so he meets four other girls.
The Quintessential Quintuplets

After dying of overwork in the real world, I’m reincarnated as an immortal witch, and I spend 300 years enjoying a relaxing life. At some point, though, I end up at level 99! All those years spent killing slimes to make the money to pay the bills gave me a ton of experience points. Rumors of the level 99 witch spread, and soon I’m up to my ears in curious adventurers, duelist dragons, and even a monster girl calling me her mom! I’ve never been on an adventure, but I’m the strongest in the world… What’s going to happen to my relaxing life?!
I've Been Killing Slimes for 300 Years and Maxed Out My Level

Hairi Takahara never expected summer to feel like a dream. Sent to Torishirojima to sort through his late grandmother's belongings, he's met with endless sea, quiet nostalgia, and mysterious girls, each chasing something just out of reach. As he settles into island life, lost memories begin to surface and he finds what he never knew he'd lost.
Summer Pockets

A door to another world stretches out before a boy who's been brutally bullied all his life. This alternate reality grants him access to all sorts of things, like cheat skills and a portal that lets him travel between his old and new worlds! Can this class loser turn his life around back home...?
I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too

To escape his tiring job, weary Murata finds escape at a nearby baseball stadium. While the games are thrilling, it’s Ruriko, the gyaru as cold as the beer she serves but secretly a sweetheart, who keeps him coming back. As her first regular, Murata discovers the warmth behind her frosty demeanor, and their hilarious, heartwarming encounters light up the ballpark and maybe even their hearts.
Catch Me at the Ballpark!

After learning heretical teachings about the Earth and the Sun, a child prodigy searches for his master's hidden research while evading the Inquisition.
Orb: On the Movements of the Earth

The distant future, 5012. The sudden aerial invasion of Earth by <Aliens> and their creations <Machine Lifeforms> led mankind to the brink of extinction. The surviving number of humans who took refuge on the moon to organize a counterattack using <android> soldiers to recapture Earth. However, the war reaches a stalemate as the <Machine Lifeforms> continue to multiply infinitely. In turn, humanity deploys anew unit of android soldiers as an ultimate weapon: <YoRHa> Newly dispatched to Earth <2B> joins <9S>, the analyst currently stationed there, where amid their mission, they encounter a myriad of mysterious phenomena... This is the story of these lifeless <androids> and their endless fight for the sake of mankind.
NieR:Automata Ver1.1a

Suzuki's a high school girl in love, but the guy she's fallen for is nothing like her! While she's cheerful, outgoing, and always trying to fit in, her classmate Yusuke Tani is stoic, quiet, and doesn't seem to care what people think of him. Will Suzuki be able to overcome her anxieties and ask him out, or will she discover that opposites really don't attract?