Character Description (From the Regretevator WIKI):

Mozelle is generally kind to others, speaking in a formal if slightly pompous manor. She can be very curt when angered and will not hesitate to say something rude if she thinks it's true. She can also be somewhat air-headed, as seen in her dialogues with Lampert. Mozelle consistently refers to herself as a princess, and will sometimes refer to others as subjects and similar titles reminiscent of the Medieval era and the Renaissance.

She / They

Voice Description:

I imagine Mozelle's voice is royal, yet high pitched. Personally she could also be British if you'd like to try that!

https://regretevator.fandom.com/wiki/Mozelle

Lines are from Mozelle's canon dialogue in Regretevator