Audiobook Narrator

Engaging. Smart. Seriously fun.


Western Historical Romance

Cozy Mystery, Female Sleuth

Historical Mystery, 1st Person

Western Romance, Hero and Heroine Meet Cute


Memoir French Accent

Inspirational, quoting Scripture

Inspirational, humorous

Meditation, Spiritual Self-Help

Memoir, Spirituality

Hi, I’m Mary

I began narrating and publishing my own audiobooks in 2016. As a multi-published author of romantic comedy and mystery, I found a new avenue of bringing characters to life with distinct accents and attitudes. Debra Holland, NYT & USA Today best-selling author of the Montana Sky series and founder of Montana Sky Publishing, recruited me to narrate and produce the Harper Ranch historical western romance series and I’ve been narrating historical mystery and nonfiction titles, specifically memoir and spirituality.

I’m available to work with independent authors and publishers directly or through ACX & Findaway Voices.

Please contact me at:

Accents & Dialects

Narration & Main Characters

General American
British (Manchester)

Minor Characters

New York


“I received many auditions, and I chose Mary Castillo to narrate as I immediately felt she captured the spirit of the book. It was not an easy task: a lengthy volume with many characters from different places. Her accents, intonations and interpretation of them were brilliant, and she brought the book to life. Mary always read with cognizance of the scene and presence. The tone, pace, rhythm and style were just right. I was so delighted with the reading that I asked her to work with me again on another project! The quality audio recording was excellent, and any requested modifications made to the narration were done swiftly and perfectly.”

– Faiz Ahmad, Book Studio

Mary’s Books on Audible

Notable Projects















Western romance audiobook on audible









Winner of the ABR Listener’s Choice Award in Mystery

2019 Society of Voice Arts & Sciences Audition Spotlight Finalist

Daphne du Maurier Award for Excellence in Paranormal Mystery Nominee


Mary Castillo and is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to