A person who is able to communicate with or understand animals, often in a way that seems magical or intuitive. The horse whisperer was able to calm the wild stallion with just a few gentle words.
A person who is skilled at influencing or persuading others, often in a subtle or indirect manner. As a political whisperer, she had the ability to sway opinions behind the scenes.
One who whispers; a person who speaks in a very low or hushed voice. The librarian scolded the quiet whisperer disturbing the reading room.