Whisper is a rather mysterious individual with a quiet and withdrawn personality. Very soft-spoken, she speaks only when the situation calls for it and, true to her name, in a very low volume, rarely uttering more than a few words at a time. Whisper used to be more outspoken, eloquent and joyful, but due to the trauma that Dr. Eggman and Mimic had caused her by ensuring the demise of her friends, she grew much more silent and reserved. Since then, she has been more shy, cautious and distrustful of others, preferring to be out of the spotlight and in hiding. She also values her personal space and limited her interactions with others, fearing that if she made new friends, she could not handle losing them too. When in social situations, Whisper usually exhibits a rather bashful side of herself.