Voice Development with Sally Clawson, Rebecca Castelli, and Julia Norton

Starts Saturday, May 20, 2023

10:00 AM-1:00 PM Pacific Time (US & Canada)
The registration period has closed for this event.


Class Sessions: 5/20/2023, 5/21/2023, 6/3/2023, 6/4/2023

Class Description

Unveil the kinesthetic process of speech, practice warm-up and strengthening exercises, and perform heightened text that challenges even the seasoned speaker. Zero-in on your problem areas such as slurred words, enunciation difficulties, and regionalisms. Strengthen your lips, tongue, and jaw so you are free to focus on your acting and intention. And discover how to get through hours of narration and video game voice over by exploring breathing, resonance, and posture to master the tips and tricks that keep your voice healthy and happy all day long.

Core — Electives (Voice)

Core classes are designed for beginning and intermediate students. Before taking a Core class, students should have completed the relevant Beginner class or taken one entry-level class elsewhere.

Online Class

This class is held on Zoom. Class will not be recorded.

Class Size

Class size is limited to 12 students


Cost: $425.00

Spaces Remaining: 1


Discount Bundles

All Core classes may be bundled in the following ways:


Commercial Core

Breaking It Down

Commercial Styles

Commercial Blueprint

$1,155 $120
Narration Core

Narration Nuts & Bolts

Narration Styles

Natural Narration

$1,155 $120
Character Core

Character Playbook

Character Styles

Building Character

$1,155 $120
Core Electives

Acting for VO

Voice Development

Building Your Business

$1,155 $120
Mix & Match Any 3 of the above $1,155 $120
Core Essentials

All 9 Commercial, Narration,

and Character Core classes

$3,425 $400
Complete Core All 12 Core classes! $4,500 $600


Add Core classes to your cart in the combination(s) of your choice. Bundle pricing will apply automatically when three or more Core classes appear in your cart.


Email classes@voiceone.com if you have any questions.

Instructor: Julia Norton; Rebecca Castelli; Sally Clawson

Julia is a singer, actor and teacher. She has over 25 years experience teaching people how to have a free and healthy voice. From singers in the West End, to beginners, improvisers, clowns, actors, CEO’s, therapists and kids. She studied jazz musicianship in London, qualified as a Voice Movement Therapy practitioner in 2000 and then moved to the Bay Area. She divides her time between teaching voice and voice acting. She won a ‘Voice Arts’ award for her role in Disney’s Star Wars game ‘Jedi Challenges’, a ‘Parents’ Choice’ award for her CD Lullaby Island and a Marin Arts council grant for her original compositions. Her popular podcast ‘Dark and Twisty Tales’ is available on itunes.

Rebecca Castelli holds a BA in voice and theatre and an MFA in acting. Previously from Seattle, she won a Seattle Times Footlight Award for her role of Mabel in The Pirates of Penzance, and also had the honor of acting with Tony award-winning actress Judy Kaye in Gypsy at 5th Avenue Musical Theatre Company. She was a company member of the Marin-based Porchlight Theatre Company for five years and had leads in many of their mainstage productions, including Chekhov’s Three Sisters and Oscar Wilde’s An Ideal Husband. Locally, Rebecca has also acted with Shotgun Players and Cinnabar Theater Company. She dialect coaches for various Bay Area theatres, including Shotgun Players, SF Playhouse, Theatre Rhinoceros, Town Hall Theatre Company, Mendocino Theatre Company, Virago Theatre Company, and Ross Valley Players. She is a founding member of The Incidentalists, a long-form improvisational group based in Oakland. Rebecca has taught voice for almost twenty years in the Bay Area, out of her own private studio, and with Berkeley Repertory School of Theatre since 2007.

Sally Clawson believes the skill of voice over requires good acting, technique, knowledge of the business, and a sense of play. Her teaching weaves all of these skills in a balanced and focused progression that will develop a highly competitive actor. She is engaging, generous and direct because she focuses on the student and what their voice and individuality bring to the art.


SAG-AFTRA, California's Labor laws, and the Krekorian Talent Scam Prevention Act state that casting workshops are allowed under the law but cannot offer auditions or employment as part of their services. By registering for a class taught by a talent agent, casting director, producer, or actor who hires talent, you are fully aware that it is not a job interview or audition. By attending a class through a Talent Training and Counseling Service, you further understand that the intent of the class is solely educational.