Whisperer (noun)

A person who speaks in a quiet and soft voice, especially in order to keep a secret or to calm someone or something.

Origin:

Unknown.

Examples:

1. She was known as the horse whisperer because of her ability to calm any horse with just her voice.
2. He was a skilled whisperer who could talk anyone down from a panic attack.
3. The baby whisperer was able to soothe the crying infant with her gentle whispers.
4. She was the perfect person to play the role of the whispering assassin in the movie.
5. The stage whisper is a technique used by actors to speak in a quiet voice that can still be heard by the audience.