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Seiichiro Yamashita

ACTOR · FROM FUKUYAMA, JAPAN

Seiichiro Yamashita

Born 1992 · 34 years old90 credits since 20081 coming up

FunnyFriendshipQuirkyHeartwarmingWhimsical

See the filmography

In the pictureThat Time I Got Reincarnated as a Slime

ABOUT SEIICHIRO

There’s no biography for Seiichiro Yamashita yet.

Born21 May 1992

BirthplaceFukuyama, Japan

Known forActing

On Cineora80 of 90 titles

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Seiichiro Yamashita elsewhere

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Known for

The titles people know Seiichiro from.

That Time I Got Reincarnated as a Slime poster

Series

That Time I Got Reincarnated as a Slime

2018–IMDb8.0

Horimiya poster

Series

2021IMDb8.0

86 EIGHTY-SIX poster

Series

2021–2022IMDb8.3

The Eminence in Shadow poster

Series

The Eminence in Shadow

2022–2023IMDb7.7

More than a Married Couple, but Not Lovers poster

Series

More than a Married Couple, but Not Lovers

2022IMDb7.6

Shangri-La Frontier poster

Series

Shangri-La Frontier

2023–IMDb7.6

Orange poster

Series

2016IMDb7.7

The Ancient Magus' Bride poster

Series

The Ancient Magus' Bride

2017–2023IMDb7.6

Horimiya: The Missing Pieces poster

Series

Horimiya: The Missing Pieces

2023IMDb7.8

Aoashi poster

Series

2022–IMDb8.1

How a Realist Hero Rebuilt the Kingdom poster

Series

How a Realist Hero Rebuilt the Kingdom

2021–2022IMDb7.2

Tsuredure Children poster

Series

Tsuredure Children

2017IMDb7.2

Coming up

What Seiichiro is working on next.

The Eminence in Shadow: Lost Echoesas Cid Kagenou / Shadow (voice)Date to be announced

Career

IMDb rating of each title on Cineora, by year.

Titles on Cineora: 80
Average IMDb: 7.0
Highest rated: Demon Slayer: Kimetsu no YaibaIMDb 8.5
Working since: 2008

Size: how widely seen

Filmography

90 credits

The 2020s

51 titles · IMDb 7.0 on average

An Observation Log of My Fiancée Who Calls Herself a Villainess poster

Series

An Observation Log of My Fiancée Who Calls Herself a Villainess

2026IMDb7.2

as Courtgain Deres Mardan (voice) · 12 episodes

Mistress Kanan Is Devilishly Easy poster

Series

Mistress Kanan Is Devilishly Easy

2026–IMDb6.6

as Yōji Kyōgi (voice) · 12 episodes

Akane-banashi poster

Series

2026–IMDb7.7

as Guriko Arakawa (voice) · 9 episodes

Isekai Office Worker: The Other World's Books Depend on the Bean Counter poster

Series

Isekai Office Worker: The Other World's Books Depend on the Bean Counter

2026IMDb6.4

as Norbert Blanc (voice) · 12 episodes

Tatsuki Fujimoto 17-26 poster

Series

Tatsuki Fujimoto 17-26

2025IMDb7.9

as Akira (voice) · 1 episode

Disney Twisted-Wonderland: The Animation poster

Series

Disney Twisted-Wonderland: The Animation

2025–IMDb5.9

as Ace Trappola (voice) · 8 episodes

Not on Cineora

Shabake

2025

as Matsunosuke (voice) · 13 episodes

Hotel Inhumans poster

Series

2025–IMDb6.1

as Toshiya Kase (voice) · 1 episode

The 2010s

37 titles · IMDb 7.0 on average

Case File N° 221: Kabukicho poster

Series

Case File N° 221: Kabukicho

2019–2020IMDb6.3

as James Moriarty (voice) · 24 episodes

Ascendance of a Bookworm poster

Series

Ascendance of a Bookworm

2019–IMDb7.8

as Cornelius (voice) · 7 episodes

Ahiru no Sora poster

Series

2019–2020IMDb7.2

as Rokuro Hirai (voice) · 8 episodes

Lord El-Melloi II's Case Files {Rail Zeppelin} Grace note poster

Series

Lord El-Melloi II's Case Files {Rail Zeppelin} Grace note

2019IMDb6.9

as Svin Glascheit (voice) · 13 episodes

Not on Cineora

Future Imaginations

2019

as Minami Kōta (Voice)

Demon Slayer: Kimetsu no Yaiba poster

Series

Demon Slayer: Kimetsu no Yaiba

2019–2024IMDb8.5

as (voice) · 1 episode

That Time I Got Reincarnated as a Slime poster

Series

That Time I Got Reincarnated as a Slime

2018–IMDb8.0

as Phobio (voice) · 9 episodes

HANEBADO! poster

Series

2018IMDb6.3

as Gaku Isehara (voice) · 12 episodes

The 2000s

2 titles · IMDb 7.5 on average

A Certain Scientific Railgun poster

Series

A Certain Scientific Railgun

2009–2020IMDb7.5

as Man (voice) · 1 episode

Black Butler poster

Series

2008–2025IMDb7.6

as Edward Midford (voice) · 1 episode

Often works with

The people who keep turning up in Seiichiro’s titles.

Saori HayamiDemon Slayer: Kimetsu no Yaiba, 86 EIGHTY-SIX and 6 more

Kana HanazawaThe Eminence in Shadow, Orange and 6 more

Soma SaitoSuppose a Kid from the Last Dungeon Boonies Moved to a Starter Town?, The Piano Forest and 6 more

Mao IchimichiThat Time I Got Reincarnated as a Slime, Classroom of the Elite and 5 more

Kazuyuki OkitsuOrange, How a Realist Hero Rebuilt the Kingdom and 5 more

Koki UchiyamaHorimiya, The Ancient Magus' Bride and 4 more

Yoshitsugu MatsuokaDemon Slayer: Kimetsu no Yaiba, The Eminence in Shadow and 4 more

Natsuki HanaeDemon Slayer: Kimetsu no Yaiba, Nagi-Asu: A Lull in the Sea and 4 more

Makoto FurukawaThat Time I Got Reincarnated as a Slime, Golden Time and 4 more

Masaru YokoyamaComposer · Classroom of the Elite, Horimiya and 4 more