Performer
A performer whose catalogue work here is strong, with the fuller case still to be made.
Nutevio rank
#113107
of 909177 performers
Top 25%
Seishirou Katou works on transformation rather than volume, and the catalogue keeps proving that the quieter choice was the correct one.
The essay
Our editors on the work, the patterns and the reason this body of work holds together.
Seishirou Katou appears in 3 films in the Nutevio catalogue, and none of them would work the same way without Seishirou. Cells at Work! is the clearest case: a film rated 7.7 by our editors, where the performance carries weight the script only implies.
The recognisable elements are transformation, screen presence, versatility. Watch two of these films back to back and the method separates from the material — the same instrument, tuned differently for action, comedy, fantasy. It is a style built on what is withheld as much as what is played.
Working with Hideki Takeuchi, Yutaka Yamamoto, Eiichiro Hasumi, Seishirou Katou 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.
Cells at Work! (2024) as Arata Takeda · Assassination Classroom (2015) as Itona · Twilight (2019) as Yuusuke Kijinami (voice)
Career snapshot
Ranked #113107 of 909177 performers tracked in the Nutevio library.
Films in Nutevio
3
2015–2024
Career length
9 yrs
Measured across our catalogue
Academy Awards
—
Unknown
Oscar nominations
—
Unknown
Highest Nutevio score
7.7
Cells at Work!
Average Nutevio score
7.2
Across catalogue work
Highest IMDb rating
7.7
Cells at Work!
Most frequent director
Hideki Takeuchi
1 film together
Longest collaboration
1×
With Hideki Takeuchi
Most common genre
Action
2 titles
Average runtime
1h 31m
Across catalogue work
Golden Globe wins
—
Unknown
Nutevio metric
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.
Nutevio metric
Cultural impact and legacy, measured separately from craft — how far the work travelled once it left the cinema.
Nutevio Influence Score
6.6
out of 10
A quieter influence — felt inside the films rather than across the industry.
How far the work travelled past the people who saw it first.
What survives once the release-week conversation has burned off.
Institutional acknowledgement, weighted but never decisive.
Years of chosen, relevant work rather than years merely employed.
Statuettes, read as evidence rather than verdict.
Roles named without needing the film named alongside them.
Directors who wrote parts because this performer existed.
The reading other performers now have to answer.
Actor DNA
A fingerprint derived from the roles themselves — register, range and the kind of film they carry.
The shape of a career
Every performance plotted in time. Hover a point to read the title behind it.
Peak years
Where the scores, the awards and the sheer volume of work agree with each other.
Best decade
2020s
7.7 average MV
The 2020s are where the work and the material meet. Cells at Work! — the run our editors reach for first when the argument is about range rather than fame.
Highest average Nutevio score
2020s
7.7
Across 1 catalogue film in this decade, our scores never drop below the level a career is judged on.
Highest average IMDb rating
2020s
7.7
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. Twilight, Assassination Classroom.
Most productive era
2010s
2 films
The busiest stretch of the catalogue — volume that reads as appetite rather than availability.
Range, mapped
Genres down the side, decades across the top. Warmer cells mean stronger titles.
| Genre | 2010s | 2020s |
|---|---|---|
| Drama | 6.81 film | — |
| Action | 7.21 film | 7.71 film |
| Comedy | 7.21 film | 7.71 film |
Chronology
Firsts and peaks
The turning points, in the order they happened.
First film in Nutevio
Where our catalogue meets this career, as Itona.
Highest rated performance · Career peak · Most recent film
2024Cells at Work!
7.7 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 Arata Takeda.
Our order
Every performance in the catalogue, ordered by Nutevio Score.
Every title
Filter by genre or decade, and compare any two titles side by side.
3 of 3 films
as Arata Takeda
Directed by Hideki Takeuchi
as Yuusuke Kijinami (voice)
Directed by Yutaka Yamamoto
as Itona
Directed by Eiichiro Hasumi
From the library
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
#1
Arata Takeda
Cells at Work! (2024)
Performance score7.5
The performance the rest of the career is read through. Arata Takeda gives Seishirou Katou a structure to work against, and the film hands over its centre of gravity without hesitation.
View movie#2
Yuusuke Kijinami (voice)
Twilight (2019)
Performance score7.2
Twilight asks for something the previous films did not, and gets it. Yuusuke Kijinami (voice) is played without a single line of pleading for the audience's sympathy — which is exactly why it lands.
View movie#3
Itona
Assassination Classroom (2015)
Performance score7.1
Assassination Classroom asks for something the previous films did not, and gets it. Itona is played without a single line of pleading for the audience's sympathy — which is exactly why it lands.
View movieStart here
A guided path through the work, ordered so each film explains the next.
Best entry point
as Arata Takeda
Start here. Cells at Work! is the clearest statement of what Seishirou Katou does — accessible, 110 minutes, and rated 7.7 by our editors. No context required.
Our editors order this path by accessibility first and chronology second. You meet Seishirou 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.
Assassination Classroom (2015)
Keeps the action register of Cells at Work! but asks for a colder reading of it.
Twilight (2019)
A deliberate change of key after Assassination Classroom — same instrument, unfamiliar tuning, and the reason range gets mentioned.
Company kept
The directors and performers this career keeps returning to.
Behind the camera
Who casts this performer, how often, and what the pairing produces.
Hideki Takeuchi
Director
1 film together · 7.7 avg MV
One film, but the kind that reorganises how a performer is cast afterwards.
Best film together
Cells at Work!Eiichiro Hasumi
Director
1 film together · 7.2 avg MV
One film, but the kind that reorganises how a performer is cast afterwards.
Best film together
Assassination ClassroomYutaka Yamamoto
Director
1 film together · 6.8 avg MV
One film, but the kind that reorganises how a performer is cast afterwards.
Best film together
TwilightSix degrees
Follow the thread outward — director, film, co-star, and the film after that.
Categories of our own
Six editorial categories we apply to every performer we cover.
Most rewatchable
Cells at Work!
as Arata Takeda
The one that survives a fourth viewing. Nothing in the performance depends on surprise, which is why it keeps paying out.
Most emotional performance
Twilight
as Yuusuke Kijinami (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
Cells at Work!
as Arata Takeda
You can hear this reading in other actors' auditions a decade later — the surest measure of influence there is.
Best ensemble performance
Assassination Classroom
as Itona
Work that makes everyone else in the frame better without ever pulling the camera towards itself.
Career defining performance
Cells at Work!
as Arata Takeda
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
“You can build a whole film around a performer who knows when not to speak. Seishirou Katou has known it for a long time.”
Head to head
Put two careers on the same scale and see where the argument actually sits.
Ours alone
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.
Action Legend
Awarded
2 catalogue titles in action, each one a reference point for the films that followed.
Our desk
Best ending, best opening, best twist and the rest — categories we apply to everyone we cover.
Best ending
Cells at Work!
as Arata Takeda
The last five minutes reorganise everything before them, and hold up when you already know what's coming.
Best opening
Cells at Work!
as Arata Takeda
A first sequence that states the rules of the film without explaining a single one of them.
Most emotional
Twilight
as Yuusuke Kijinami (voice)
The film where the technique steps aside and lets the feeling arrive undefended.
Best twist
Cells at Work!
as Arata Takeda
A reversal earned by information the film gave you and trusted you to misread.
Best visual achievement
Cells at Work!
as Arata Takeda
Images that would survive with the sound switched off.
Best action sequence
Cells at Work!
as Arata Takeda
Geography, stakes and consequence held in the same frame — spectacle you can follow.
Best dialogue
Twilight
as Yuusuke Kijinami (voice)
Lines written to be spoken, staged so the pauses do half the work.
Most underrated film
Cells at Work!
as Arata Takeda
The public vote sits below ours on this one, and the direction is the reason for the gap.
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Have your say
Community
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Reference
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