Audiobook Narrator

Engaging. Smart. Seriously fun.


Cozy Mystery amateur sleuth with multiple characters

Cozy Mystery, cooking lessons from a ghost

Historical Cozy Mystery, the crime

Cozy Mystery, heroine in a tight spot

Historical Western Sweet Romance, Hero and Heroine

Historical Western Romance, Hero and Heroine Meet Cute


Inspirational, quoting Scripture

Inspirational, humorous

Meditation, Spiritual Self-Help

Memoir, Spirituality

Hi, I’m Mary

My voice style: American-English female voice, welcoming, warm, humorous, ironic, sincere, comforting, sophisticated, reassuring, natural, neighborly, compassionate, commanding, witty, loving, and dare I say, daring?


  • Audiobooks
  • Live announce
  • Webinar intro/outro

    Audiobook Narration

  • Cozy mystery
  • Sweet contemporary romance
  • Time travel
  • Historical romance
  • Christian nonfiction
  • Memoir
  • Self help
  • Contact me if it’s not listed
  • Home Recording Studio

  • Microphone: Neumann TLM102 Condenser
  • Interface: Focusrite Scarlett 2i2
  • DAW: Audacity & Adobe Audition
  • Computer: PC
  • Enhanced vocal booth designed and built by Scott Peterson.
  • About Mary

    I’m a voiceover artist and author ready to collaborate with producers and authors to bring stories to life. I train to learn new genres, get feedback, maintain vocal health, and create a great listening experience for my audience.

    I live in So Cal wine country where I volunteer for my son’s school activities, attend book clubs, and relax at my favorite locals’ secret wineries. At Aspen Institute’s Food & Society program, I’m a senior program manager responsible for a live webinar series and social media content. I ran a PR firm for 15 years. We focused on higher education, healthcare, nonprofits, and small food businesses. I am also a multi published novelist and currently working on a cozy mystery series. I got bit by the voiceover bug when, out of envy, I wanted to bring my novels into audio. I applied my video and film production background to produce the audio myself, and as a result, won an award. Ever since, word of mouth has spread around the campfire and independent authors hired me to bring their series and single titles into audio!

    An area I’m keen to expand is audio description. Three of my family members, one of whom taught me to read, are experiencing irreversible low vision. They love books, movies, and TV. Audiobooks (not just mine, of course!) and audio description services have given them back joy of story in all its forms. I can’t wait to step into this kind of service to the world.

    When I’m not in my booth, I’m exploring hiking trails, growing some form of vegetable in the garden, cooking new and favorite recipes, or knitting. I’m becoming an empty nester and although I’m not thrilled about it, I’m excited about having more time to write, narrate, and attend conferences!

    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