World-Class dialect coaching.
Any accent. Anywhere.

To get started, which of these describes you best?

Featured on

working on an audition or a booked role

seeking a dialect coach to work with cast on a show/film/videogame

looking for help to sound
more confident and natural

”Would recommend to anyone seeking aid with dialect work, as I'm sure it would benefit them greatly.”

- Michael Luwoye, Actor, USA

”When it comes to finding someone to help me out with a new accent or spot check my work, I know I can go to Mark for the best advice!”

- Anne Whitaker, Voice & Dialect Coach, London, UK

”Mark is an awesome dialect coach, who makes the process of learning not so intimidating.”

- Dan Lim, Actor, Canada

”Loved working with Mark!!! He was so great, his instructions were clear and understandable and he is just a great coach in every way!”

- Athena Park, Actor, Canada & USA

Some words from his clients

Why clients choose Mark

Most traditional accent training is built at rest. It relies on memorizing phonetic lists, repeating isolated sentence drills, or attempting to mimic native speakers in a vacuum. But when a director changes a line on set, when a camera moves closer, or when an scene demands extreme emotional vulnerability, rest-based accent work breaks down. The actor gets pulled out of their performance and trapped in their head, trying to manage sound mechanics instead of connecting with their scene partner.

I build accents for performance.

My work treats speech as a physical, dynamic behaviour. By applying the rigorous, descriptive framework of Knight-Thompson Speechwork (KTS), I help performers map the precise physical posture, oral resonance, and vocal tract mechanics required for any dialect. Instead of forcing rigid rules, we isolate the core physical habits that generate authentic sound. This allows you to integrate the accent directly into your muscle memory, turning speech mechanics into an automatic background process rather than a constant distraction.

Whether you are prepping a last-minute 48-hour self-tape, securing a specific regional accent for a stage run, or navigating complex on-set demands for film and TV, my coaching ensures your speech remains stable as performance variables shift:

  • Stability over imitation: Crafting speech habits that survive fatigue, rapid pacing, and live adjustments on set

  • Structure over memorisation: Giving you clear, physical tools to adapt lines instantly without breaking character

  • People over stereotype: Moving past broad, caricature-like accents to build authentic, culturally grounded human voices

Beyond script prep for actors, I work alongside film productions, casting directors, and corporate communicators who need clear, authoritative, and flexible vocal delivery.
I provide targeted script analysis, accent acquisition, and voice consultation designed to withstand pressure.

When the stakes are high and the camera is rolling, you shouldn't have to manage your accent. You should just act.

I’m Mark Byron Dallas, a Knight-Thompson Speechwork-certified dialect coach working with actors, directors, and communicators in Toronto and worldwide. I coach speech that holds under real performance conditions—through high-stakes delivery, rapid pace, deep emotion, and physical movement—not just in quiet, ideal room settings.

I’m Mark Byron Dallas, a Knight-Thompson Speechwork-certified dialect coach working with actors, directors, and communicators in Toronto and worldwide. I coach speech that holds under real performance conditions—through high-stakes delivery, rapid pace, deep emotion, and physical movement—not just in quiet, ideal room settings.

© 2026 TalkLikeThat
Dialect Coaching by Mark Byron Dallas
Toronto, Canada