For Producers · Directors · Casting Directors
On-set support, cast preparation and accent continuity — from first read-through to final take. Coaching credits include John Wick: Chapter 4, Primitive War and Cowboy Bebop.
Nearly 40 years in the industry — as crew, casting director, agent and cast.
Sarah Valentine
Accent & Dialect Coach · VASTA · NZ Equity
2,000+
actors coached
40
years in the industry
1.5M+
followers
Coaching actors on set, in prep and through post — for studio features, streamers, network television and theatre.
Feature Film · Lionsgate
John Wick: Chapter 4
Coaching Scott Adkins · Dir. Chad Stahelski
Feature Film · Sparke Films
Primitive War
Coaching Tricia Helfer · Dir. Luke Sparke
Series · Netflix
Cowboy Bebop
Dir. Alex Garcia Lopez
Some credits cannot be listed due to non-disclosure agreements. Download the full CV
From Oscar-nominated leads to series regulars and action stars — the accent work has to hold up on camera, take after take.
Owen Cooper
Christian Convery
Scott Adkins
Rena Owen
Tricia Helfer
Sam Humphrey
Peter Hambleton
Aaron Jeffery
Sara Wiseman
Ami Metcalf
Kate Elliott
Stephen Lovatt
Some clients are not listed because of non-disclosure agreements.
USA
Standard American (Californian), New York, New Jersey, Southern American, Appalachian, Texan, Deep South, Georgia, Tennessee
British & Irish
Standard British (Contemporary RP), British RP, Welsh, Northern Irish, Southern Irish, Geordie, Liverpool (Scouse), Brummie, Cockney / London, Yorkshire, Lancashire, Manchester, West Country, Scottish, Devonshire
European
German English, French English, Russian English, Spanish English, Dutch English, Eastern European
World
South African, Jamaican, Australian, New Zealand, Afrikaans, South American English
Flexible engagement — from a single audition prep session to full production support across a shoot.
I attend set and stay in the actor's ear between takes — protecting consistency take after take, through long days and out-of-sequence shooting.
Pre-production work with one actor or the whole ensemble — building the accent before you get to set so nobody is learning on the day.
Fast turnaround accent sessions for actors in callbacks and self-tapes. Often booked the day before — I'm used to that.
Your script recorded in the required accent, with phonetics, so cast can learn it by ear and arrive prepared. Popular with productions casting remotely.
Specific regional, period or class choices researched and documented, so every department and every episode is working to the same brief.
Two decades as a casting director and agency founder — I can advise on accent authenticity at the casting stage, before it becomes a problem in the edit.
Nearly four decades across film, television and theatre — in front of the camera, behind the desk and on set.
Nearly 40
Years in the Industry
Casting Director
& Talent Agency Founder
Production Crew
Runner to Production Manager
Professional Actor
Film, TV & Theatre
Present — UK
Coaching actors and productions in American, Standard British and a wide range of regional accents. On-set support, cast prep, script recording and audition intensives, delivered in person and remotely worldwide. Creator of The Valentine Method.
New Zealand
Founded and ran New Zealand's leading talent agency, supplying featured and background cast to major international productions including The Lord of the Rings, The Hobbit, Mission: Impossible and Power Rangers.
New Zealand
Casting across film, television and commercials, working with international casting teams and directors on productions shooting in New Zealand.
London
Began at 18 in London as a runner, progressing through Second AD, First AD and Production Manager roles — a grounding in how sets actually run that shapes every coaching engagement I take on.
Top of the Lake (2013)
Prue — Dir. Jane Campion · See Saw Films
When We Go To War (2015)
Nona — Dir. Peter Burger · Jump Film & TV
Shortland Street (2014)
Louisa Marks · South Pacific Pictures
Hounds (2012)
Margaret · The Downlowconcept
Power Rangers RPM (2009)
Nurse · Ranger Productions
Hercules: The Legendary Journeys (1995)
Princess
Brando with a Glass Eye (2024)
Emily
Whina (2022)
Elaine — starring Rena Owen
The Tender Trap (2021)
Lesley — starring Rima Te Wiata
Broken Hallelujah (2014)
Valerie Grubner — Dir. Alistair Riddell
Romeo & Juliet: A Love Song (2013)
Prince's Wife — Dir. Tim van Dammen
The Insatiable Moon (2010)
Penny — Dir. Rosemary Riddell
Century (1993)
Giggling Girl — starring Miranda Richardson & Clive Owen
One Must Change (2025)
Queen Magdalene — Short Film
Silence (2021)
Short Film
Lilly (2017)
Boardroom Member — TV Short
Bliss (2011)
Frau Muller — Dir. Fiona Samuels · MF Films
Bloodlines (2010)
Psych Nurse — Dir. Peter Burger · Screentime NZ
Christmas Monologues (2009)
Chrissy — Dir. Katrina Chandra
One Wedding & A Funeral (2003)
Theatre Sports Company
Peaches Are The Juiciest Fruit (2002)
Karen
Commercials include
Most dialect coaches come from a teaching background. I came from production. I've been the runner, the First AD, the Production Manager, the casting director and the actor waiting on their close-up.
That means I understand call times, lighting setups, out-of-sequence shooting and the fact that nobody wants a coach who slows the day down. I work quietly, in the ear, and I stay out of the way.
And because I ran one of New Zealand's biggest talent agencies, I also understand exactly what you're dealing with at the casting stage — and can flag accent problems before they're baked in.
Set-ready, not classroom-bound
Comfortable working to a shooting schedule, not a lesson plan.
British & New Zealand citizen
Right to work in the UK and NZ. Available for international travel with a visa.
One point of contact
Direct communication with me — no agency layer to slow things down.
Tell me the project, the accent, the shoot dates and where you're filming — I'll come back to you with availability and a quote.
Prefer email?
sarah@sarahvalentine.com