An Unforgettable Encounter with the Voice of Darkness
In early 2025, I joined a three-hour online coaching session in a small group, focused on a topic that had intrigued me for a long time: extreme voice.
On screen appeared a French Canadian voice over artist with overflowing energy, contagious enthusiasm, and a voice that sounded… absolutely inhuman. That was Sébastien Croteau.
I wasn’t expecting to be blown away like that.
Even though I don’t use this kind of voice in my daily voice over work, I learned how to push my voice safely, how to explore it differently, how to develop new characters for role-playing games, and how to expand my range.
What stayed with me? Clear teaching, generous kindness, and the ability to guide without ever imposing.
A few months later, I met him in person at the One Voice Conference in London.
And that’s when the idea came naturally. To invite him to share his journey and his voice during one of my Apéro Voice events.
A Rare Dive into the World of Extreme Voice Over
On July 17, 2025, I had the pleasure of welcoming Sébastien Croteau as a guest for ApéroVoice.
It was a suspended moment. Not a masterclass. Not a demo. A true conversation.
We were around forty voice over artists, from all levels and backgrounds.
We talked about breath, distortion, vocal stamina. But also about storytelling, emotion, and that one thing that connects all of us here: the voice, when it dares to push past the limits of the body.
For more than two hours, Sébastien shared his background, his techniques, the cult games he worked on (Resident Evil, Star Wars Outlaws, Dead by Daylight…), and his personal vision of the craft. Honest, humble, and generous. True to who he is.
He took the time to answer every single question. With care. With clarity. With passion.
You can replay Sébastien Croteau’s ApéroVoice here.
If you’re a voiceover colleague or a voiceover enthusiast, sign up for the Apéro Voice.
A Unique Voice in Service of the Unimaginable
For Sébastien, the voice is not a tool. It’s living matter. Raw, explosive material shaped by years of metal singing, sound theatre, and vocal exploration at the edge of what’s possible.
And when he steps into the studio, there are no effects, no filters. Just a microphone, a body, and that almost animal vocal power he masters like a musical score.
He is one of those extreme voice actors who push the limits of what the human voice can express.
In Resident Evil, Star Wars Battlefront, Dead by Daylight, Baldur’s Gate 3, Hellblade II, Guardians of the Galaxy and Fortnite, he brings to life dozens of characters you’ll never see… but won’t forget.
Creatures, warriors, supernatural entities, zombies, spirits.
And behind each one, there’s detailed craftsmanship: posture, breath, texture, rhythm, pain, fear, rage.
These are not just screams laid over an animation. They are monstrous emotions, built piece by piece to make us believe in them. To make them resonate.
But what exactly is an extreme voice?
It’s the set of vocal techniques used to create saturated, distorted or inhuman sounds, without any digital effects.
Widely used in video games, genre cinema and metal music, it allows actors to create the voices of monsters, zombies, extraterrestrial beings or characters beyond reality.
What I admire most about Sébastien, beyond the technique, is that intact passion. The kind we instantly recognise in one another.
He talks about his monsters the way some actors talk about their first lead role.
He plays, he explores, he invents languages, sounds, and screams we didn’t even know were possible. And he does it with rare precision, never taking himself too seriously.
He too grew up with strange voices in his ears, characters that left a mark early on. Voices from games, from films, from childhood. Voices that made him curious, eager to mimic, eager to understand.
And today, he passes it on. He shares. He keeps creating.
And that, we feel it.
The Monster Factory: A Vocal Army in Service of the Living
When you discover the scale of Sébastien’s work, you might think he’s the only one on Earth capable of doing this.
But he’s not alone.
He founded The Monster Factory, a structure as unique as its name, where he now leads a team of more than 100 artists and voice actors, working across nearly 20 countries.
They are singers, screamers, creators of textures, crafters of guttural roars, cavernous breaths, otherworldly sounds.
What unites them all is rigorous training, a deep mastery of vocal distortion, and a visceral passion for voices that defy convention.
La Fabrique de Monstres is not a label. It’s not some vague collective.
It’s a true creative voice production company, trusted by game studios, film producers and sound designers.
A network of performers able to localise a zombie in German, whisper in Goblin, or roar in Troll-speak in Japanese. And always, without digital tricks or artificial enhancement.
No AI.
Only human voices, organically produced and crafted for deep immersion.
When a studio calls on Sébastien, they don’t just receive a file.
They walk away with a fully crafted artistic proposal, researched, tested, embodied.
And sometimes, even an entire team ready to go further.
It’s a different way of thinking about voice over.
Less standardised, more alive, more passionate.
And you can hear the difference.
Vocal Coaching: Passing It On Without Damage
Some people know how to do.
Others know how to help others do, without ever breaking them. Sébastien is one of those.
In the sessions he leads, whether online or in schools like the National Institute of Image and Sound (INIS) in Montréal, he teaches one essential truth:
how to push your voice… without pushing into the void.
Because extreme voice, when poorly managed, can hurt. Badly.
With him, there’s no showmanship, no unnecessary performance.
You learn to feel. To listen. To warm up like an athlete. To test sounds without strain. He shares his techniques with remarkable clarity.
I’ve experienced it myself.
During his coaching, I learned how to explore vocal intensities I had never dared approach. I rediscovered my breath support, shifted my intentions, tested new tones. All of it with a strong sense of safety.
Even without diving into full-on growls or monstrous voices, I expanded my vocal range and opened up new creative directions, feeling completely supported.
What makes his method unique?
He doesn’t train clones. He opens a path for each voice to develop its own vocal identity, with its strengths, limits, and textures.
He often compares metal singers to voice stunt performers. And he’s absolutely right.
He trains professionals capable of creating chaos… without burning out.