Ryotaro Okiayu

Performer

Ryotaro Okiayu

A performer whose catalogue work here is strong, with the fuller case still to be made.

Born
17 November 1969
Age
56
Nationality
Japanese
Active
2019–present
Performances
14
In Nutevio
2019–present
Known for
Demon Slayer: Kimetsu no Yaiba Infinity Castle
Performer Score
6.9
  • Action Legend
  • Modern Classic
View filmography

Nutevio rank

#820

of 909177 performers

Top 1%

Ryotaro Okiayu works on versatility rather than volume, and the catalogue keeps proving that the quieter choice was the correct one.
Ranked #820 of 909177 performers in the Nutevio catalogue. Recalculated automatically as titles and credits are imported.

The essay

Reading Ryotaro Okiayu

Our editors on the work, the patterns and the reason this body of work holds together.

Why this performer matters

Ryotaro Okiayu appears in 14 films in the Nutevio catalogue, and none of them would work the same way without Ryotaro. Me & Roboco: The Movie is the clearest case: a film rated 8.7 by our editors, where the performance carries weight the script only implies.

Signature style

The recognisable elements are versatility, transformation, quiet performance. Watch two of these films back to back and the method separates from the material — the same instrument, tuned differently for action, fantasy, animation. It is a style built on what is withheld as much as what is played.

Legacy

Working with Haruo Sotozaki, Akitaro Daichi, Yuzuru Tachikawa and others, Ryotaro Okiayu helped set a standard other performers now audition against. Awards bodies have been slower than the work, which is usually the sign of a career built on choices rather than campaigns.

Best known for

Me & Roboco: The Movie (2025) as Gorilla Gachi (voice) · Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025) as Kokushibo (voice) · Bloody Escape: Bats Out of Hell (2024) as Zesh (voice)

Career snapshot

The career at a glance

Ranked #820 of 909177 performers tracked in the Nutevio library.

  • Films in Nutevio

    14

    2019–2025

  • Career length

    6 yrs

    Measured across our catalogue

  • Academy Awards

    Unknown

  • Oscar nominations

    Unknown

  • Highest Nutevio score

    8.7

    Me & Roboco: The Movie

  • Average Nutevio score

    6.8

    Across catalogue work

  • Highest IMDb rating

    8.7

    Me & Roboco: The Movie

  • Most frequent director

    Eisaku Kawanami

    2 films together

  • Longest collaboration

    With Eisaku Kawanami

  • Most common genre

    Animation

    14 titles

  • Average runtime

    1h 35m

    Across catalogue work

  • Golden Globe wins

    Unknown

Nutevio metric

Performer Score

Ten weighted categories, applied identically to everyone we cover.

Nutevio Performer Score

6.9

out of 10

A performer whose catalogue work here is strong, with the fuller case still to be made.

  • Performance quality6.6
  • Consistency6.7
  • Emotional range7.9
  • Character transformation8.0
  • Cultural impact6.4
  • Iconic roles6.4
  • Career longevity7.1
  • Influence6.4
  • Awards recognition6.8
  • Rewatch value6.4

Nutevio metric

Influence Score

Cultural impact and legacy, measured separately from craft — how far the work travelled once it left the cinema.

Nutevio Influence Score

6.5

out of 10

A quieter influence — felt inside the films rather than across the industry.

  • Cultural impact6.1

    How far the work travelled past the people who saw it first.

  • Legacy6.2

    What survives once the release-week conversation has burned off.

  • Industry recognition6.6

    Institutional acknowledgement, weighted but never decisive.

  • Career longevity7.0

    Years of chosen, relevant work rather than years merely employed.

  • Awards6.4

    Statuettes, read as evidence rather than verdict.

  • Iconic performances7.5

    Roles named without needing the film named alongside them.

  • Influence on filmmakers6.2

    Directors who wrote parts because this performer existed.

  • Influence on other actors5.8

    The reading other performers now have to answer.

Actor DNA

How they work on screen

A fingerprint derived from the roles themselves — register, range and the kind of film they carry.

  • Versatility99
  • Transformation99
  • Quiet performance76
  • Screen presence69
  • Rewatchability67
  • Drama66
  • Charisma63
  • Emotional range62
  • Action51
  • Comedy47
  • Physical performance43
  • Intensity42
  • Villain presence35

The shape of a career

Career evolution

Every performance plotted in time. Hover a point to read the title behind it.

67891020192021202120212021202120222022202220232023202420252025
  • Nutevio
  • Performance score
  • IMDb

Peak years

Best era

Where the scores, the awards and the sheer volume of work agree with each other.

Best decade

2020s

6.8 average MV

The 2020s are where the work and the material meet. Demon Slayer: Kimetsu no Yaiba Infinity Castle, Me & Roboco: The Movie, Bloody Escape: Bats Out of Hell — the run our editors reach for first when the argument is about range rather than fame.

Highest average Nutevio score

2020s

6.8

Across 13 catalogue films in this decade, our scores never drop below the level a career is judged on.

Highest average IMDb rating

2020s

6.9

The public agrees most strongly about this stretch — useful context, and occasionally a decade behind our own reading.

Most awarded era

2010s

0 Academy Awards

Statuettes for the films themselves, which is the honest way to read an ensemble career. Detective Conan: The Scarlet School Trip.

Most productive era

2020s

13 films

The busiest stretch of the catalogue — volume that reads as appetite rather than availability.

Range, mapped

Career heatmap

Genres down the side, decades across the top. Warmer cells mean stronger titles.

The career concentrates in action during the 2020s, and the scores hold there.
Genre2010s2020s
Drama
6.33 films
Action
6.41 film
7.07 films
Thriller
6.51 film
Comedy
6.64 films
Crime
6.41 film
6.73 films
Romance
6.51 film

Chronology

Career timeline

Firsts and peaks

Career milestones

The turning points, in the order they happened.

  1. First film in Nutevio

    2019Detective Conan: The Scarlet School Trip

    Where our catalogue meets this career, as Fumimaro Ayanokoji (voice).

  2. Highest rated performance · Career peak · Most recent film

    2025Me & Roboco: The Movie

    8.7 on the Nutevio scale, the top of the catalogue for this performer. Weighing billing against the film's own quality, this is the point where everything aligned at once. The current state of the argument, as Gorilla Gachi (voice).

Our order

Performances ranked

Every performance in the catalogue, ordered by Nutevio Score.

1
Official poster for Me & Roboco: The Movie (2025)

Me & Roboco: The Movie

2025 · Comedy

8.7IMDb
2
Official poster for Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025)

Demon Slayer: Kimetsu no Yaiba Infinity Castle

2025 · Action

2h 36m

8.2IMDb
3
Official poster for Bloody Escape: Bats Out of Hell (2024)

Bloody Escape: Bats Out of Hell

2024 · Action

1h 38m

7.2IMDb
4
Official poster for One Piece Film Red (2022)

One Piece Film Red

2022 · Action

1h 55m

7.2IMDb
5
Official poster for Detective Conan: Black Iron Submarine (2023)

Detective Conan: Black Iron Submarine

2023 · Action

1h 50m

7.0IMDb
6
Official poster for Fate/Grand Order Final Singularity – Grand Temple of Time: Solomon (2021)

Fate/Grand Order Final Singularity – Grand Temple of Time: Solomon

2021 · Action

1h 34m

6.9IMDb
7
Official poster for Detective Conan: The Story of Ai Haibara: Black Iron Mystery Train (2023)

Detective Conan: The Story of Ai Haibara: Black Iron Mystery Train

2023 · Animation

1h 31m

6.7IMDb
8
Official poster for Detective Conan: Kaiju Gomera vs. Kamen Yaiba (2022)

Detective Conan: Kaiju Gomera vs. Kamen Yaiba

2022 · Mystery

1h 21m

6.7IMDb
9
Official poster for Free! the Final Stroke the First Volume (2021)

Free! the Final Stroke the First Volume

2021 · Comedy

1h 26m

6.7IMDb
10
Official poster for Detective Conan: The Scarlet Bullet (2021)

Detective Conan: The Scarlet Bullet

2021 · Romance

1h 50m

6.5IMDb
11
Official poster for Detective Conan: The Scarlet School Trip (2019)

Detective Conan: The Scarlet School Trip

2019 · Action

1h 32m

6.4IMDb
12
Official poster for Fate/Grand Order the Movie: Divine Realm of the Round Table: Camelot 2 Paladin; Agateram (2021)

Fate/Grand Order the Movie: Divine Realm of the Round Table: Camelot 2 Paladin; Agateram

2021 · Action

1h 36m

6.2IMDb
13
Official poster for Free! the Final Stroke the Second Volume (2022)

Free! the Final Stroke the Second Volume

2022 · Comedy

1h 47m

6.1IMDb
14
Official poster for Ryoma! The Prince of Tennis (2021)

Ryoma! The Prince of Tennis

2021 · Comedy

1h 40m

5.0IMDb

Every title

Filmography

Filter by genre or decade, and compare any two titles side by side.

Genre
Decade
Sort

14 of 14 films

Official poster for One Piece Film Red (2022)

as Borsalino (voice)

Directed by Unknown

IMDb7.2Rotten Tomatoes72%Metacritic661h 55mAction · Fantasy · Music · Adventure · Animation
View movie

From the library

Complete credits

Every movie and TV credit stored for this name in the Nutevio catalogue — filter by media, role or sort by rating.

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The defining work

Signature performances

Official poster for Me & Roboco: The Movie (2025)

#1

Gorilla Gachi (voice)

Me & Roboco: The Movie (2025)

Performance score8.4

The performance the rest of the career is read through. Gorilla Gachi (voice) gives Ryotaro Okiayu a structure to work against, and the film hands over its centre of gravity without hesitation.

View movie
Official poster for Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025)

#2

Kokushibo (voice)

Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025)

Performance score7.8

Demon Slayer: Kimetsu no Yaiba Infinity Castle asks for something the previous films did not, and gets it. Kokushibo (voice) is played without a single line of pleading for the audience's sympathy — which is exactly why it lands.

View movie
Official poster for Bloody Escape: Bats Out of Hell (2024)

#3

Zesh (voice)

Bloody Escape: Bats Out of Hell (2024)

Performance score7.1

Bloody Escape: Bats Out of Hell asks for something the previous films did not, and gets it. Zesh (voice) is played without a single line of pleading for the audience's sympathy — which is exactly why it lands.

View movie
Official poster for One Piece Film Red (2022)

#4

Borsalino (voice)

One Piece Film Red (2022)

Performance score7.1

One Piece Film Red asks for something the previous films did not, and gets it. Borsalino (voice) is played without a single line of pleading for the audience's sympathy — which is exactly why it lands.

View movie

Start here

The movie journey

A guided path through the work, ordered so each film explains the next.

Official poster for Me & Roboco: The Movie (2025)

Best entry point

Me & Roboco: The Movie

as Gorilla Gachi (voice)

Start here. Me & Roboco: The Movie is the clearest statement of what Ryotaro Okiayu does — accessible, 0 minutes, and rated 8.7 by our editors. No context required.

Our editors order this path by accessibility first and chronology second. You meet Ryotaro at the most legible performance, then move forward in time so each film reads as a response to the one before it rather than a repetition of it.

  1. Official poster for One Piece Film Red (2022)

    One Piece Film Red (2022)

    Keeps the animation register of Me & Roboco: The Movie but asks for a colder reading of it.

  2. Official poster for Detective Conan: Black Iron Submarine (2023)

    Detective Conan: Black Iron Submarine (2023)

    Keeps the action register of One Piece Film Red but asks for a colder reading of it.

  3. Official poster for Bloody Escape: Bats Out of Hell (2024)

    Bloody Escape: Bats Out of Hell (2024)

    Keeps the action register of Detective Conan: Black Iron Submarine but asks for a colder reading of it.

  4. Official poster for Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025)

    Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025)

    Keeps the action register of Bloody Escape: Bats Out of Hell but asks for a colder reading of it.

Company kept

Frequent collaborators

The directors and performers this career keeps returning to.

Behind the camera

Director network

Who casts this performer, how often, and what the pairing produces.

Six degrees

Connected through cinema

Follow the thread outward — director, film, co-star, and the film after that.

Categories of our own

Most rewatchable, most emotional, most influential

Six editorial categories we apply to every performer we cover.

Most rewatchable

Official poster for Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025)

Demon Slayer: Kimetsu no Yaiba Infinity Castle

as Kokushibo (voice)

The one that survives a fourth viewing. Nothing in the performance depends on surprise, which is why it keeps paying out.

Most emotional performance

Official poster for One Piece Film Red (2022)

One Piece Film Red

as Borsalino (voice)

Grief played at conversational volume. The film never asks the audience to cry; the performance simply makes it difficult not to.

Most influential performance

Official poster for Me & Roboco: The Movie (2025)

Me & Roboco: The Movie

as Gorilla Gachi (voice)

You can hear this reading in other actors' auditions a decade later — the surest measure of influence there is.

Best ensemble performance

Official poster for One Piece Film Red (2022)

One Piece Film Red

as Borsalino (voice)

Work that makes everyone else in the frame better without ever pulling the camera towards itself.

Career defining performance

Official poster for Me & Roboco: The Movie (2025)

Me & Roboco: The Movie

as Gorilla Gachi (voice)

If the career had to be argued in a single scene, our editors would pick one from this film and rest the case.

In their films' words

Lines that stay

You can build a whole film around a performer who knows when not to speak. Ryotaro Okiayu has known it for a long time.

Nutevio Editors · On Me & Roboco: The Movie

Head to head

Compare performers

Put two careers on the same scale and see where the argument actually sits.

Ours alone

Nutevio Honors

Recognitions handed out by this desk, on criteria no awards body uses.

Modern Classic Performer

Awarded

Defining performances delivered inside the last twenty-five years, in films already being taught rather than merely remembered.

Animation Legend

Awarded

14 catalogue titles in animation, each one a reference point for the films that followed.

Our desk

Editor's picks

Best ending, best opening, best twist and the rest — categories we apply to everyone we cover.

Best ending

Official poster for Me & Roboco: The Movie (2025)

Me & Roboco: The Movie

as Gorilla Gachi (voice)

The last five minutes reorganise everything before them, and hold up when you already know what's coming.

Best opening

Official poster for Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025)

Demon Slayer: Kimetsu no Yaiba Infinity Castle

as Kokushibo (voice)

A first sequence that states the rules of the film without explaining a single one of them.

Most emotional

Official poster for Fate/Grand Order the Movie: Divine Realm of the Round Table: Camelot 2 Paladin; Agateram (2021)

Fate/Grand Order the Movie: Divine Realm of the Round Table: Camelot 2 Paladin; Agateram

as Lancelot (voice)

The film where the technique steps aside and lets the feeling arrive undefended.

Best twist

Official poster for Detective Conan: Kaiju Gomera vs. Kamen Yaiba (2022)

Detective Conan: Kaiju Gomera vs. Kamen Yaiba

as Fumimaro Ayanokoji (voice)

A reversal earned by information the film gave you and trusted you to misread.

Best visual achievement

Official poster for Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025)

Demon Slayer: Kimetsu no Yaiba Infinity Castle

as Kokushibo (voice)

Images that would survive with the sound switched off.

Best action sequence

Official poster for One Piece Film Red (2022)

One Piece Film Red

as Borsalino (voice)

Geography, stakes and consequence held in the same frame — spectacle you can follow.

Best dialogue

Official poster for Free! the Final Stroke the First Volume (2021)

Free! the Final Stroke the First Volume

as Kiyohumi Haishima (voice)

Lines written to be spoken, staged so the pauses do half the work.

Most underrated film

Official poster for Detective Conan: The Scarlet Bullet (2021)

Detective Conan: The Scarlet Bullet

as Subaru Okiya (voice)

The public vote sits below ours on this one, and the direction is the reason for the gap.

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Reference

Quick facts

Born
17 November 1969
Kitakyushu, Fukuoka, Japan
Age
56
Nationality
Japanese
Years active
2019–present
Known for
Demon Slayer: Kimetsu no Yaiba Infinity Castle
Genres
Action, Fantasy, Animation
IMDb
nm0645636
Nutevio rank
#820
of 909177 performers tracked

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