Casting One Character in Three Languages: What Changes Between English, Korean, and Japanese

Marlene Gmeiner
Jun 12
5 min read

Voicing the same character across English, Korean, and Japanese isn't three versions of one job - it's three different jobs that happen to share a script. Here's what actually changes, from fifteen years of multilingual casting.

There's an assumption we run into constantly: that voicing a character in another language is mostly a translation problem. Hand over the script, swap in a translated version, find a voice that sounds similar, and you're done. After fifteen years of casting voices across languages at TooSix, we can tell you it almost never works that way. The character itself - how it lands, how an audience feels about it - changes from language to language. Casting one character across English, Korean, and Japanese isn't three versions of the same task. It's three different tasks that happen to share a script.

Here's what actually changes, and why.

A voice actor seen at mid-distance in a warm recording booth, standing at a microphone on a boom stand with pop filter, headphones on, soft light through the booth window with a faint Seoul skyline beyond. Soft watercolor and gouache illustration, hand-painted digital art, visible brushwork and impasto texture, warm muted desaturated palette, amber and dusty cream tones, single warm interior light source, quiet contemplative atmosphere, Seoul studio environment subtly in background, illustrated never photorealistic, analog grain, 16:9

Before you cast anyone, answer one question

The first thing we settle on any multilingual project has nothing to do with voices. It's a production question: who owns the localization?

Sometimes a game developer or anime studio brings its own native-speaking producer for each market, and our job is to cast and record to their direction. Other times, the studio hands the entire localization to us. Those are two completely different starting points, and treating them as the same is how a project goes wrong before a single actor walks into the booth.

When the localization is ours to manage, the first concrete task is almost always identical: matching dialogue length across the target languages. A line that runs four seconds in English might stretch to six in Korean or compress to three in Japanese, depending on sentence structure, syllable count, and how much meaning each language packs into a phrase. If you're dubbing to picture, those seconds are everything - they're the difference between a performance that sits naturally on a character's mouth and one that feels dubbed in the worst sense of the word. So before we touch tone, emotion, or accent, we're solving for time.

The hard part isn't the language. It's the culture.

Once the logistics are handled, the real challenge begins - and it's rarely linguistic. It's cultural. The trickiest part of casting one character across languages is making the performance make sense to each audience: not just translating the words, but translating the meaning the voice carries.

Here's a simple example. In English-language content made for the American market, a sophisticated villain often sounds best with a British accent. It's a cultural shorthand audiences read instantly - refined, intelligent, a little dangerous. But that shorthand belongs to English-speaking audiences. There's no clean one-to-one equivalent in Korean or Japanese. So the real question becomes: what signals "elegant antagonist" to a Korean ear, or a Japanese one? It might be a particular speech register, a level of formality, a regional inflection, or a vocal archetype that carries the same weight in that culture.

Finding that equivalent - not the accent itself, but the feeling the accent creates - is the actual craft. Get it wrong, and your menacing, cultured villain just sounds like someone reading lines.

Three microphones on boom stands arranged in a row in a softly lit studio, each touched by a slightly different warm hue, suggesting one character voiced three ways, clean and minimal with gentle negative space. Soft watercolor and gouache illustration, hand-painted digital art, visible brushwork and impasto texture, warm muted desaturated palette, amber and dusty cream tones, single warm interior light source, quiet contemplative atmosphere, Seoul studio environment subtly in background, illustrated never photorealistic, analog grain, 16:9

Some things simply don't translate — exhibit A: aegyo

Nowhere is this clearer than with performance styles that are deeply embedded in one culture and alien to another. Take aegyo - the Korean art of performing cuteness and charm, a deliberately endearing, softened way of speaking and carrying yourself. In Korean, and in its close Japanese cousins, aegyo is completely normal. It's woven into how characters of all ages express affection or playfulness. An adult character leaning into it isn't strange at all; it's expected, sometimes beloved.

Put that exact same delivery into English, on an adult character, and it falls apart. It reads as bizarre - even off-putting - because English-speaking audiences have no cultural slot for it. The performance that makes a Korean or Japanese character feel warm and likeable can make an English version of that same character feel unhinged.

This is why you can't simply direct one performance and replicate it across languages. What's charming in one booth is a red flag in another. Knowing which is which - and casting and directing accordingly - is the whole game.

Where clients go wrong

Almost every avoidable mistake we see traces back to the same root: a client approaching a multilingual project entirely through their own language and culture. That's natural - it's the world they know. But when they're targeting a market they don't actually understand, that single-culture lens turns into a string of wrong assumptions.

They assume a performance that worked at home will work abroad. They assume the same direction applies everywhere. They assume cute is cute and menacing is menacing across every border. None of that is reliably true, and the gap between what they expect and what the target audience actually hears is where projects quietly fail.

A female voice actor at mid-distance inside a warm booth, captured mid-performance with expressive open body language and a raised hand, head turned slightly, microphone and pop filter close, soft glow through the booth glass. Soft watercolor and gouache illustration, hand-painted digital art, visible brushwork and impasto texture, warm muted desaturated palette, amber and dusty cream tones, single warm interior light source, quiet contemplative atmosphere illustrated never photorealistic, analog grain, 16:9

The one rule we will not break

If we could get every client to internalize a single principle, it would be this: for every target language, you need a native-speaking producer. Not a translator on call - a producer who lives in the language and culture and sits in on the direction.

We say it bluntly because we've seen the alternative too many times. Handing a Korean script to a recording studio in New York with no Korean speakers on the production side, and trusting them to dub or perform it for a Korean audience, is a guaranteed disaster. It doesn't matter how good the gear is or how talented the actors are. Without someone who can hear when a line lands wrong - culturally, tonally, in ways a non-native simply can't catch - you ship a product that native audiences clock as "off" within seconds.

That's exactly why we build native producers into every language we cast in. It isn't a luxury. It's the line between localization and embarrassment.

The takeaway

The thread running through all of this is simple: casting a character in another language isn't word translation - it's cultural translation. The script is the easy part. Getting a villain to feel dangerous, a sweet character to feel sweet, and an entire performance to feel native to an audience that doesn't share your assumptions: that's the craft we've spent fifteen years refining across English, Korean, Japanese, and beyond.

If you're bringing a character to a new market and you want it to land the way it does at home, that's exactly the kind of work we love.

A producer seen at mid-distance seated at a mixing console, headphones on, looking through the glass into a softly lit booth beyond, warm interior light, a faint Seoul skyline through a side window. Soft watercolor and gouache illustration, hand-painted digital art, visible brushwork and impasto texture, warm muted desaturated palette, amber and dusty cream tones, single warm interior light source, quiet contemplative atmosphere illustrated never photorealistic, analog grain, 16:9

TooSix Media Group is a Seoul-based multilingual voice casting agency and professional recording studio working across English, Korean, Japanese, and more.