#5999: Who Teaches Actors Those Accents?

Dialect coaches break accents into six moves, not forty — and the science says imitation ability is a bell curve, not a gift.

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A dialect coach doesn't hand an actor a recording and wish them luck. The first move is decomposition: break a target accent into its constituent parts — individual vowel and consonant sounds, intonation, and oral posture, the resting position of the tongue and jaw that you never notice about your own speech because it's the default. The reason a coach is needed at all is that your own ears lie to you, filtering the target through the categories your first accent built. You literally cannot hear the difference you're getting wrong.

William Conacher, who spent eight years at RADA and worked on The Crown and Billy Elliot, starts by getting a matched sample — same gender, period, and class position as the character — then obsesses over it until he finds the pattern: roughly six salient points to hand the actor. Not forty. Six gives a foothold, and the ear starts doing the rest. His framing is that learning an accent is closer to learning dance steps than to learning music: you can understand a score completely and still not perform it. An accent is muscle memory, and the intellectual grasp buys you nothing until the mouth has been drilled. Jill McCullough's four competence stages — unconsciously incompetent through unconsciously competent — end with an admission from a coach with a formidable credit list: it's rare that people get all the way there.

The trainers are phoneticians with a performance habit, working from the International Phonetic Alphabet, and they're the applied wing of a research field studying why imitation ability varies. The paradox that shows how far practice runs ahead of intuition: the hardest accents are the ones closest to your own. Welsh actors find Geordie difficult and vice versa, because nearby accents share so many features that the differences get filed as noise.

Then the question underneath everything: who gets to build it? The science is unusually direct. A 2024 study of 92 imitators rated by over a thousand listeners found scores from 1.94 to 4.99 out of seven. A 2013 study of 138 German-English bilinguals found imitation ability roughly normally distributed. Not a binary gift — a distribution, which means most people sit in the middle and can move. The recurring predictor of the ceiling isn't intelligence or memory (working memory showed zero correlation) but musicality, and within musicality, singers outperform instrumentalists. Craft or lottery? The evidence points at both.

Sources

What the research for this episode read before the script was written. Primary sources first.

  1. Myers, Olson & Scapetis-Tycer, Individual Differences in Accent Imitation, *Open Mind* 8:1084 1106, 2024-08-31, [primary research]
  2. Reiterer et al., Are you a good mimic? Neuro-acoustic signatures for speech imitation ability, *Frontiers in Psychology*, 2013-10-22 [primary research]
  3. Second Language Accent Faking Ability Depends on Musical Abilities, Not on Working Memory, *Frontiers in Psychology*, 2019-02-12 [primary research]
  4. Spotlight interview with dialect coach William Conacher
  5. BFI Sight & Sound, How do actors like Daniel Kaluuya and Daisy Edgar-Jones master new accents? 2021-05-03
  6. Columbia Magazine, The Art of Mastering an Accent, According to a Dialect Coach (Michael Walsh), Fall 2024
  7. Slate *Working*, Hollywood dialect coach Samara Bay explains her process, 2021-05-25
  8. The Hollywood Reporter India, How Dialect Coaches Help Actors Find Their Voice
  9. Blake, McLeod & Verdon, Intelligibility Enhancement Assessment and Intervention, *Clinical Linguistics & Phonetics*, 2020
  10. Blake & McLeod, Speech-language pathologists' support for multilingual speakers' English intelligibility, *Journal of Communication Disorders*, 2019

Mentions

  • A Mozart is not a Pavarotti Christiner and Reiterer paper on singers vs instrumentalists
  • accent modification Industry coaching professionals for intelligibility
  • Audrey LeCrone Dialect coach, Daniel Kaluuya's on-set ears
  • Bill Hader Comedian quoted on nervous imitation and voices
  • International Phonetic Alphabet Phonetic notation for pronunciation control
  • Jill McCullough Dialect coach, four-stage competence model
  • Michael Walsh Dialect coach with acting and linguistics degrees
  • RADA Royal Academy of Dramatic Art, London drama school
  • Samara Bay Dialect coach working on-set in actors' ears
  • William Conacher Dialect coach, The Crown and Billy Elliot

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#5999: Who Teaches Actors Those Accents?

Corn
There's a specific kind of betrayal that only happens with actors. You watch somebody for years, you're certain they're English, and then you find an interview and the accent is pure Ohio.
Herman
It happens to me constantly. I'll have a whole mental file on someone and then a press junket torches it.
Corn
Daniel's been chewing on the same thing. His note is about how unreasonably good professional actors are at this, and the fact that behind the ones who take it seriously there's a person whose whole job is the accent. He wants the enterprise looked at properly. The trainers themselves, whether they're connected to the people who actually study speech, and then the big one underneath all of it: can anyone learn an accent, or is there a gifted subset and the rest of us are just standing there?
Herman
And whether it's trainable, innate, or the thing he suspects, which is both.
Corn
Right. Craft or lottery. Let's find out which.
Herman
Start with the people who do this for a living, because the method is more systematic than most people assume. A coach doesn't hand an actor a recording and say good luck. The first move is decomposition. You take a target accent and break it into constituent parts, the individual vowel and consonant sounds, the overall oral posture, the intonation.
Corn
Oral posture.
Herman
Where the whole apparatus sits at rest. Where the tongue lives, how much the jaw hangs, whether the sound is forward in the mouth or back. It's the thing you never notice about your own accent precisely because it's the default.
Corn
So the actor's copying a sound, and the coach is really teaching a posture.
Herman
And the reason you need a coach at all is that your own ears lie to you. You hear the target through the filter of your native categories. There's a line from a dialect coach about exactly this, that most people's ears and brains trick them because of interference from the mental categories their first accent established. You literally cannot hear the difference you're getting wrong.
Corn
The instrument's fault, not the player's.
Herman
William Conacher's method is the clean example. He spent eight years at RADA, he worked on The Crown, The Reader, Billy Elliot. First thing he does is get the right sample. And the right sample means matched. Same gender as the character, same period, same class position, because a received pronunciation from 1955 is a different animal from one from 1995.
Corn
He's auditioning the recording like it's the actor.
Herman
Then he obsesses over it. Sits with it long enough to notice things, writes all of it down, and then the actual craft step, which is finding the pattern. He's looking for half a dozen salient points. Six things he can hand the actor. His words are that he doesn't want to bombard people with changes, just the ones that give them a way in.
Corn
Six things for an entire accent.
Herman
That's the insight. The accent isn't six things, but the actor can't hold forty. Six is the number that gives them a foothold, and once they're standing on something, the ear starts doing its own work on the rest.
Corn
Which is not what a person expects. You'd think the job was completeness.
Herman
Conacher has a line for what it actually is. He says learning an accent is much more akin to learning dance steps than it is to learning a piece of music.
Corn
Explain that one, because music sounds closer.
Herman
Music you can understand completely and still not be able to perform. You can read the score, you know exactly what it should sound like in your head, and your hands won't do it. Dance is the opposite, or rather it's the same problem named honestly. You have to build it into the body. It's muscle memory. And an accent is muscle memory of a set of small movements you've never made in that combination.
Corn
So the actor who watches recordings for a month and can hear it perfectly has learned the score.
Herman
Exactly nothing. Conacher's point is that the intellectual grasp is the easy part and it buys you nothing until the mouth has been drilled.
Corn
Which is presumably where the competence stages come in.
Herman
Jill McCullough's four stages, and she's worked on Billy Elliot, The Iron Lady, No Time to Die, The Batman. Stage one, unconsciously incompetent. The actor doesn't know what he's getting wrong, which is where everyone starts, including people who are quite confident. Stage two, consciously incompetent. Now he can hear it, which feels like getting worse because every take is suddenly wrong. Stage three, consciously competent, he can produce it, but he's assembling it in real time and it costs him attention. Stage four, unconsciously competent, it just comes out.
Corn
And she says how often people reach stage four?
Herman
She says it's rare you get there. Which for a coach with that credit list is a real admission.
Corn
Working actors, and the top of the ladder is a rare condition.
Herman
There's a second thing she says that matters more for how you think about the profession. She says just because I can do it doesn't always help me teach it. You have to create a teaching system, otherwise it's just a girl in a room showing off.
Corn
That's the actual job description.
Herman
The ability and the pedagogy are separate skills and the second one is rarer. A coach is the only person on a production who ever tells an actor he's wrong. Everyone else is managing him.
Corn
So how many of them come out of linguistics? Because Daniel's guess was that they'd be plugged into the people who study speech.
Herman
The guess is partly right and the part he's missing is the identity of the specialists.
Corn
Go on.
Herman
There's no formal certification body for this. You don't get a license to be a dialect coach. The pipeline runs through drama schools, RADA, Central, and through voice studies masters programs, and what those programs have in common is phonetics. Conacher discovered he loved phonetics doing a voice studies MA. Michael Walsh has a degree in acting and a degree in linguistics, which is an unusual combination and also exactly what the job is.
Corn
So the trainers are phoneticians with a performance habit.
Herman
The core tool of the trade is the International Phonetic Alphabet. It's how you write down a sound precisely instead of gesturing at it. Walsh describes the moment it caught him, studying the IPA and then going and looking up different accents and writing out the sounds for fun.
Corn
For fun.
Herman
That's the tell. Here's the part Daniel was reaching for, though. The academic literature on accent imitation sits in phonetics journals, psycholinguistics journals, speech science. The people studying why imitation ability varies and the people teaching actors to do it are working in the same territory, and increasingly reading each other.
Corn
So the trainers are a profession that lives next door to the science and occasionally visits.
Herman
They're the applied wing. And there's a paradox Conacher points at that makes it clear how far the applied wing runs ahead of the intuition. The hardest accents to learn are the ones closest to the actor's own.
Corn
That's backwards.
Herman
Welsh actors find Geordie difficult. Geordie actors find Welsh difficult.
Corn
Say why, because my instinct says nearby should be easier.
Herman
It's the mental categories again. Two accents that are close share a lot of features, so the differences are small and local, and the ear files them as noise. That's not a different sound, that's them saying it funny. When the accent is far from your own, you hear it as foreign from the first syllable and you pay attention to the whole system. But the neighbour accent, you assume you already know it, and you stop listening.
Corn
The assumption does the damage.
Herman
Which is why the on-set job exists. A recording studio is a controlled environment. A film set is not. Audrey LeCrone describes herself as Daniel Kaluuya's ears on set, so he can focus on acting and she can catch him whenever he sounds a little British.
Corn
So there's a person whose entire job is to listen to one man.
Herman
Samara Bay sits in the creative hub behind the script supervisor, twelve-hour days, thumbs-up or a tiny sound note between takes. You can't do that work from the script. It has to be live, in the actor's ear, while he's holding an emotion, because the accent is one more thing he's managing in real time.
Corn
Twelve hours of listening for one bad vowel to show up.
Herman
And it's exactly what Conacher's dance-step framing predicts. You don't lose dance steps because you don't understand them. You lose them when you're thinking about something else.
Corn
It strikes me that this is also why the job is so invisible. Nobody watches a film and credits the person standing off-camera who caught the vowel.
Herman
The best work in this field is the work you never notice. If the coach has done the job, the audience simply believes the actor is from there. The failure mode is the opposite, you get pulled out of the scene and you can't say why. That's usually a coach who wasn't there, or an actor who didn't do the drilling.
Corn
So the reward for excellence is invisibility.
Herman
Which is a hard way to make a living, and probably part of why so few people do it.
Corn
Alright. That's the craft. The coaches can build the thing and they can build it reliably, mostly. But the question under Daniel's prompt is still sitting there, which is who gets to build it. Because everything you've described is the intervention.
Herman
And the science on individual differences is unusually direct about this. There's a 2024 study specifically on accent imitation, ninety-two imitators, over a thousand raters scoring them. The spread was enormous. Best imitator scored 4.99 out of seven. Worst scored 1.94.
Corn
That's not a talent gap, that's a canyon.
Herman
Same picture from earlier work. A 2013 study of a hundred and thirty-eight German-English bilinguals found imitation ability roughly normally distributed. Mean around 4.6 on a ten-point scale, spread from two and a half up to nearly eight.
Corn
Bell curve.
Herman
Not a gift you have or don't. And that distinction is the whole answer to Daniel's question, because a binary gift means the untalented can't be helped. A distribution means most people sit somewhere in the middle and can move.
Corn
Move how far, though. That's the part a bell curve doesn't answer.
Herman
McCullough's answer from the profession is that you know very quickly whether somebody can do this. A coach watches an actor for an hour or two and has a sense of where the ceiling is. But the training literature keeps finding the same predictors of that ceiling, and they're not what you'd guess.
Corn
Not intelligence.
Herman
Not intelligence and not memory. Musicality. That's the strongest recurring correlate. A 2019 study of German speakers faking a French accent found accent-faking ability correlated with singing ability around 0.4, tonal musicality around 0.39, rhythmic ability around 0.4.
Corn
And the memory result?
Herman
Zero correlation with working memory. Which sounds like it contradicts the intuition that you need memory to hold new sounds, and there's a resolution. Working memory seems to matter for learning the sound in the first place. Musical ability matters for retrieving it and storing it in a form you can reproduce.
Corn
So the singer has a place to put it.
Herman
And within musicality there's a finer split. Christiner and Reiterer found singers outperform instrumentalists at foreign-accent imitation. Their paper title is A Mozart is not a Pavarotti.
Corn
The instrument is the voice.
Herman
The people who train their voice, who already think in terms of pitch and placement and where a sound sits, have a head start on people who train a piano.
Corn
Which makes the whole thing look less like phonetics and more like singing.
Herman
It's not either. The 2024 study found three things feeding into it at once. Musical perception, vocal articulation, meaning how well you control the moving parts, and a personality trait, openness to experience.
Corn
Personality.
Herman
And a fourth, which is the one I keep thinking about. Imitation improved based on the imitator's attitude toward the talker. If you like him, or identify with him, you do it better.
Corn
So it's not a purely mechanical skill.
Herman
Bill Hader is quoted on exactly this in the study. He says when you're nervous around someone you start to talk like them, and that he'd done it since he was a kid, and that he thinks it lent itself to being able to do voices.
Corn
The boy copying the adults because he wanted in.
Herman
Attitude as an input. You lean toward the person and the mouth follows.
Corn
Now here's the thing I want to press on. Daniel asked whether it's a trainable skill or a remarkable aptitude, and you've said both about four times now. What does that actually look like at the individual level? A person with a low ceiling. Can they still get meaningfully better?
Herman
They can get better and stay below someone with a high ceiling who's had a week of training. That's what a distribution with a real spread gives you. The 2013 study found high-ability imitators had a measurably larger articulation space, correlated with ability at 0.7, which is a very strong relationship.
Corn
Articulation space, meaning?
Herman
The range of positions their mouth and tongue can reach. Larger space, more sounds available. Low-ability imitators showed a different signature in the brain, more diffuse activation, cortical effort, like more of the machine was being recruited to do the same job.
Corn
More people pushing the cart.
Herman
And that's a description of what practice is for. It's reducing the effort. So it's a bit of both, but not a vague bit. The base you start from is real and measurable, and it isn't a wall, it's a slope.
Corn
Herman.
Herman
Mm.
Corn
I want a real number on the motivation question, because you've said attitude matters and you've given me a personality trait and a Hader quote. Is there anything showing that the liking is doing measurable work, or is that just the study author being nice?
Herman
The 2024 study is the one that put the attitude variable in directly, and the effect was real enough to report as a finding. My honest read is that the mechanism is identification. You imitate the people you're becoming, and if you're not becoming them, the accent feels like a costume.
Corn
A costume you're wearing in front of them.
Herman
Which is why so much accent coaching is really bonding work. The coach gets the actor to like the character's world a little before anyone touches a vowel.
Corn
So the first job isn't the mouth, it's the heart.
Herman
In a manner of speaking, yes. You have to want to sound like them before you can.
Corn
Let's take one call, we've got a bit of listener mail sitting here. This is Opal.
Opal: Hi, hi, I'm calling from the queue at the pharmacy in Tel Aviv, I have been on hold so long I have memorized the hold music, so this is my window. I love the accent episodes but I think you two are missing the big one. I have lived here fourteen years and I have an accent that is nothing, it is nowhere, my mother doesn't recognize it and my Israeli friends say I sound French for some reason, and I want to know, if an actor can learn one, can I learn like, a nice one? Just a nice one. Is there a nice one I can buy? Okay, that's my question, shalom.
Corn
She wants an accent off the shelf.
Herman
What I'd tell her is that a nowhere accent is doing its job, which is being understood by everybody. And the reason nobody can place it is that she stopped converging on any one group.
Corn
So she's got the thing she asked for.
Herman
And there's a whole industry answering her actual question. Accent modification for professionals.
Corn
The industry Daniel wondered about.
Herman
Executives, physicians, professors, people on the phones all day. Usually non-native English speakers being coached for intelligibility. And the coaching is the same technique as the actors, decompose the accent, find the salient features, drill them into the mouth.
Corn
And speech-language pathologists do it too.
Herman
They run intelligibility enhancement programs, usually in a clinical setting. There's a striking finding in that literature. A record review of a hundred and seventy-five clients from thirty-five countries found only about a quarter of them reported trouble with the English th sounds.
Corn
And actually had trouble?
Herman
Ninety-five percent substituted them. So roughly three quarters of the clients couldn't hear a feature of their own speech that was audible to everyone around them.
Corn
Which is the same story as the Welsh actor and the Geordie accent.
Herman
Same story. The ear that has to judge the output is the ear that made the error. Which is the entire argument for a coach existing, and it's the same argument whether the client is a movie star or a surgeon.
Corn
Then there's the word for it.
Herman
Michael Walsh calls accent reduction a ridiculous term, because he's just teaching them a different accent, an American one. The clinics frame it as intelligibility, not erasure.
Corn
Because the framing decides what the client thinks is happening to their identity.
Herman
The honesty of the coaches on this point is striking. They're not selling authenticity. They're selling a specific, portable, learnable thing that gets you taken seriously in a room you weren't born in.
Corn
Which is a thicker subject than it first looks. Who gets told to change and who gets told their accent is charming.
Herman
Entirely different conversations depending on who's asking. And notice that the training literature doesn't pretend to be neutral about it. It's up front that the goal is intelligibility in a specific market, not correctness.
Corn
Alright, so we've got the craft and we've got the curve. Anything left on the shelf before we hand over?
Herman
One thing. Nobody has actually run the clean experiment of professional actors against the general population on this. The 2024 study had actors in it, six professionals, ten drama students, and the paper doesn't break out whether they beat everyone else.
Corn
Which is a strange hole.
Herman
It is. My suspicion is that the professionals would win on the trained accents and the amateurs might surprise people on the cold reads, but nobody's tested it, so that's a guess and I'll flag it as one.
Corn
Noted as a guess. Before we wrap, I can't hear about a two-year-old rehearsal and a control group in the same segment and not hear about Allen Whitcombe's garden again, sorry, that's my contribution.
Herman
You didn't need to bring that up.
Corn
I know.

This episode was generated with AI assistance. Hosts Herman and Corn are AI personalities.