Performer
A performer whose catalogue work here is strong, with the fuller case still to be made.
Nutevio rank
#4782
of 909177 performers
Top 1%
Michael Kostroff represents the rare performer whose career became more ambitious with every decade — 28 years in, and Michael is still choosing the harder script.
The essay
Our editors on the work, the patterns and the reason this body of work holds together.
Michael Kostroff appears in 9 films in the Nutevio catalogue, and none of them would work the same way without Michael. Molly's Game is the clearest case: a film rated 7.2 by our editors, where the performance carries weight the script only implies.
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 comedy, drama, romance. It is a style built on what is withheld as much as what is played.
Working with Jillian Bell, Michael Jacobs, David Wnendt and others, Michael Kostroff 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.
Molly's Game (2017) as Louis Butterman · Pinball: The Man Who Saved the Game (2023) as Chairman Warner · Liar Liar (1997) as Conference Room Attorney
Career snapshot
Ranked #4782 of 909177 performers tracked in the Nutevio library.
Films in Nutevio
9
1997–2025
Career length
28 yrs
Measured across our catalogue
Academy Awards
—
Unknown
Oscar nominations
—
Unknown
Highest Nutevio score
7.2
Molly's Game
Average Nutevio score
6.4
Across catalogue work
Highest IMDb rating
7.2
Molly's Game
Most frequent director
Jillian Bell
1 film together
Longest collaboration
1×
With Jillian Bell
Most common genre
Comedy
6 titles
Average runtime
1h 40m
Across catalogue work
Golden Globe wins
—
Unknown
Nutevio metric
Ten weighted categories, applied identically to everyone we cover.
Nutevio Performer Score
6.8
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
6.5
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
2010s
7.2 average MV
The 2010s are where the work and the material meet. Molly's Game — the run our editors reach for first when the argument is about range rather than fame.
Highest average Nutevio score
2010s
7.2
Across 1 catalogue film in this decade, our scores never drop below the level a career is judged on.
Highest average IMDb rating
2010s
7.2
The public agrees most strongly about this stretch — useful context, and occasionally a decade behind our own reading.
Most awarded era
1990s
0 Academy Awards
Statuettes for the films themselves, which is the honest way to read an ensemble career. Liar Liar.
Most productive era
2020s
6 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 | 1990s | 2000s | 2010s | 2020s |
|---|---|---|---|---|
| Drama | — | — | 7.21 film | 6.15 films |
| Action | — | 6.51 film | — | — |
| Thriller | — | 6.51 film | — | — |
| Comedy | 6.81 film | — | — | 6.15 films |
| Crime | — | — | 7.21 film | — |
| Romance | — | — | — | 6.03 films |
Chronology
Firsts and peaks
The turning points, in the order they happened.
First film in Nutevio
1997Liar Liar
Where our catalogue meets this career, as Conference Room Attorney.
Highest rated performance · Career peak
2017Molly's Game
7.2 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.
Most recent film
2025Summer of 69
The current state of the argument, as Nurse Appleman.
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.
9 of 9 films
as Louis Butterman
Directed by Aaron Sorkin
as Chairman Warner
Directed by Unknown
as Conference Room Attorney
Directed by Tom Shadyac
as Nurse Appleman
Directed by Jillian Bell
as Manny
Directed by Michael Jacobs
From the library
Every movie and TV credit stored for this name in the Nutevio catalogue — filter by media, role or sort by rating.
Loading credits…
The defining work
#1
Louis Butterman
Molly's Game (2017)
Performance score7.1
The performance the rest of the career is read through. Louis Butterman gives Michael Kostroff a structure to work against, and the film hands over its centre of gravity without hesitation.
View movie#2
Chairman Warner
Pinball: The Man Who Saved the Game (2023)
Performance score7.0
Pinball: The Man Who Saved the Game asks for something the previous films did not, and gets it. Chairman Warner is played without a single line of pleading for the audience's sympathy — which is exactly why it lands.
View movie#3
Conference Room Attorney
Liar Liar (1997)
Performance score6.7
Liar Liar asks for something the previous films did not, and gets it. Conference Room Attorney is played without a single line of pleading for the audience's sympathy — which is exactly why it lands.
View movie#4
Nurse Appleman
Summer of 69 (2025)
Performance score6.5
Summer of 69 asks for something the previous films did not, and gets it. Nurse Appleman 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 Louis Butterman
Start here. Molly's Game is the clearest statement of what Michael Kostroff does — accessible, 141 minutes, and rated 7.2 by our editors. No context required.
Our editors order this path by accessibility first and chronology second. You meet Michael 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.
Liar Liar (1997)
A deliberate change of key after Molly's Game — same instrument, unfamiliar tuning, and the reason range gets mentioned.
Pinball: The Man Who Saved the Game (2023)
Keeps the comedy register of Liar Liar but asks for a colder reading of it.
Maybe I Do (2023)
Keeps the romance register of Pinball: The Man Who Saved the Game but asks for a colder reading of it.
Summer of 69 (2025)
Keeps the comedy register of Maybe I Do but asks for a colder reading of it.
Company kept
The directors and performers this career keeps returning to.
Tom Shadyac
Director
1 film together
Notably Liar Liar
D.J. Caruso
Director
1 film together
Notably Eagle Eye
Aaron Sorkin
Director
1 film together
Notably Molly's Game
David Wnendt
Director
1 film together
Notably The Sunlit Night
Michael Jacobs
Director
1 film together
Notably Maybe I Do
Jillian Bell
Director
1 film together
Notably Summer of 69
Behind the camera
Who casts this performer, how often, and what the pairing produces.
Aaron Sorkin
Director
1 film together · 7.2 avg MV
One film, but the kind that reorganises how a performer is cast afterwards.
Best film together
Molly's GameTom Shadyac
Director
1 film together · 6.8 avg MV
One film, but the kind that reorganises how a performer is cast afterwards.
Best film together
Liar LiarD.J. Caruso
Director
1 film together · 6.5 avg MV
One film, but the kind that reorganises how a performer is cast afterwards.
Best film together
Eagle EyeJillian Bell
Director
1 film together · 6.4 avg MV
One film, but the kind that reorganises how a performer is cast afterwards.
Best film together
Summer of 69Michael Jacobs
Director
1 film together · 5.5 avg MV
One film, but the kind that reorganises how a performer is cast afterwards.
Best film together
Maybe I DoDavid Wnendt
Director
1 film together · 5.4 avg MV
One film, but the kind that reorganises how a performer is cast afterwards.
Best film together
The Sunlit NightSix 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
Molly's Game
as Louis Butterman
The one that survives a fourth viewing. Nothing in the performance depends on surprise, which is why it keeps paying out.
Most emotional performance
Pinball: The Man Who Saved the Game
as Chairman Warner
Grief played at conversational volume. The film never asks the audience to cry; the performance simply makes it difficult not to.
Most influential performance
Molly's Game
as Louis Butterman
You can hear this reading in other actors' auditions a decade later — the surest measure of influence there is.
Best ensemble performance
Liar Liar
as Conference Room Attorney
Work that makes everyone else in the frame better without ever pulling the camera towards itself.
Career defining performance
Molly's Game
as Louis Butterman
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. Michael Kostroff 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.
Career Achievement
Awarded
28 years of relevant work — not merely a long career, but a long career of choices.
Modern Classic Performer
Awarded
Defining performances delivered inside the last twenty-five years, in films already being taught rather than merely remembered.
Comedy Legend
Awarded
6 catalogue titles in comedy, 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
Liar Liar
as Conference Room Attorney
The last five minutes reorganise everything before them, and hold up when you already know what's coming.
Best opening
Eagle Eye
as Jeweler
A first sequence that states the rules of the film without explaining a single one of them.
Most emotional
Pinball: The Man Who Saved the Game
as Chairman Warner
The film where the technique steps aside and lets the feeling arrive undefended.
Best twist
Eagle Eye
as Jeweler
A reversal earned by information the film gave you and trusted you to misread.
Best visual achievement
Eagle Eye
as Jeweler
Images that would survive with the sound switched off.
Best action sequence
Eagle Eye
as Jeweler
Geography, stakes and consequence held in the same frame — spectacle you can follow.
Best dialogue
Pinball: The Man Who Saved the Game
as Chairman Warner
Lines written to be spoken, staged so the pauses do half the work.
Most underrated film
Liar Liar
as Conference Room Attorney
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
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Reference
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