Personality

Felt is short tempered, hot headed, and rather unladylike. Reinhard has commented about this trait several times with Felt often not caring. She is also very childish about a lot of things, although this childish nature goes away when faced with a dangerous situation. Felt is a stickler when it comes to money due to living in the slums which also blessed her with a mentality of never allowing herself to lose in any kind of way. She cares about Old Man Rom and treats him like her real grandfather. She greatly trusts Rom's word, especially when it comes to appraisals in price. Felt has stated multiple times that she resents everything about the kingdom and plans to tear it all down, which is likely due to the way Felt grew up.

After spending a year living a completely different life from what she was used to, Felt started viewing the world in a different light, not being scared of changes anymore as she realized that change is a natural course of action; one she is unable to avoid. As a result, Felt developed a strong preference for the theory of the "Survival of the Fittest", where the one who could adapt to their situation and discern the best manner of survival would survive and strive over those who could not. Consequentially to this mentality, Felt believes she's what she is today due to the belief that she adapted, opting her to accept every decision she made thus far as something natural.
From Re:Zero Wiki (SPOILERS AHEAD)

Voice

Felt is originally voiced by Christine Marie Cabanos in the dub. Felt has a cutesy higher femme voice with a bit of a growl behind it. She is cheeky and hot headed, so that plays into her voice often.
Felt starts at 2:33