Penny Polendina is a robot, with her telling Ruby that "most girls are born, but I was made".
Penny is amiable, excitable, kind and curious. She shows a distinct lack of social awareness, likely due to not having a lot of experience with human nature. Penny's most notable trait is her kindness.

I’m looking for a kind-hearted, cheerful voice that sounds like it’s distant from the rest of the world around her.

I HIGHLY recommend listening to the links provided after each line to give you a better idea of what I want her to sound like.*