Character context and lore:

Violet is something called a Familiar. Familiar's are these spirits that roam in this world and spread their curse to other humans. She was turned into a familiar at a young age and walked alone in the forest for many years. Sometimes, you can hear her sing the lullaby her mother sang to her before she became a familiar (VOICE ACTOR MUST SING)

Ideal Voice:

I imagine her to sound like she's whispering all of the time with a very high, airy voice. she's only a young child so she has trouble pronouncing certain words as well.