Ashley is a casual player and a teenager in an ExplodingTNT video.
Ashley is a young female teenager who has a pale dress with white, wavy decoration. Her eyes are light brown with blond hair. It is very possible for her to become a major character, but as of now she is mostly a background filler character.
Ashley has the personality of a stereotypical "white girl". She likes to text with her friends, likes phones a lot, and so she wants the same features in Minecraft. And so, she begs Notch to add phones. We can only assume some parts of her personality (eg. that she likes Starbucks), but those aren't shown on-screen. She also has had many attempts to get a boyfriend, but usually fails, or he does.