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Sian Cox

Sian Cox

  Boston, Massachusetts, US

Sian Cox Banner
Sian Cox

Sian Cox

Boston, Massachusetts, US


Sian brings to her voiceover work a wealth of experience from the performance world. Conservatory trained in acting and voice, she has appeared in or been the voice behind numerous television and radio commercials and radio drama. Sian offers her distinctive sound and directable talent for your advertising projects - smooth, lyrical, articulate, intelligent, confident, professional, corporate, authoritative, trustworthy, warm and believable. Pack a powerful punch with a polished and reliable world class voice for your TV and radio commercials, narrations, audiobooks and more.


English (North American)


British, England - London (Cockney, Estuary, East End), French, German, Irish, Latino, North American, Russian, Scottish (Standard Scottish English), US New England (Boston, Providence), US New York (New Jersey, Bronx, Brooklyn), US South (Deep South, Dixie, Delta), US South West (Texas)


Middle Aged, Senior, Young Adult

Special Skills

Audiobooks, Business, Cartoons, Documentaries, Educational, Internet, Movie Trailers, Podcasting, Radio, Telephone, Television, Videogames


Sian is an accomplished actor, singer, speaker, voiceover artist, classical and cabaret soloist, writer and published photographer. Passionate about and deeply involved in the performance arts for many years, she has also worked in arts administration, fundraising and arts advocacy. With her years onstage as a performance artist, and her multiple business accomplishments, Sian is a knowledgeable and reliable talent in the voiceover market.



Boston Conservatory, BFA
Voice Study - Lillian Lee, Frank Terminello, Richard Rescia, Judith Oberholtzer, William Metcalf
Speech/Dialects - Ralph Metcalf
Voice Coaching - Steven Wahlberg
Hallmark Institute of Photography, Highest Scoring Portfolio, Internationally published
Soprano Soloist - Commonwealth Opera, Valley Light Opera, Arcadia Players, Le Cabaret


  • Microphone

    Rode NT1-A Studio Condenser Microphone

  • Computer & Software


  • Special Equipment

    Focusrite Scarlett 2i2 Audio Interface

  • Delivery Methods

    Email, We Transfer, Dropbox

  • Turnaround Time

    Generally within 24 hours, or sooner if requested

Service Description

Edited and finished voice tracks


Ms. Cox was more than helpful in updating our phone messaging system. She was easy to work with, offered suggestions for improvements and was professional at all times. We received numerous comments from both our patients and referring physicians about the quality of our new message. I would strongly recommend her for voiceovers or narration at any business.

Timothy A. Taylor - New England Orthopedic Surgeons

Voice Over Clients

Allcroft & Moore, PC
New England Orthopedic Surgeons
Fairway Siding
Northampton Honda
Westfield Shops

Payment Terms

Hire Sian as a voice actor. Payment is made through SurePay, an escrow service that guarantees your work is done to your satisfaction. Send payment securely by Visa, Mastercard or PayPal through then download your files from the website.

Watch a video to see how to make a payment

Next Steps

To contact Sian Cox about your project, request a quote today. We'll walk you through the process step-by-step. It's fast and easy.

Watch a video and learn how to request a quote

Narration Demo 12 Listens

Sian Cox

Commercial Demo 18 Listens

Sian Cox

British Accent 18 Listens

Sian Cox

Cockney Accent 8 Listens

Sian Cox

Irish Accent 13 Listens

Sian Cox

Scottish Accent 7 Listens

Sian Cox

  • Hire Sian Cox as a voice actor. Working with Sian Cox is fast and easy. We'll walk you through the process step-by-step.
    Request a quote for your project today.