Susie has the appearance of a tall, purple, vaguely reptilian monster with freckles at the sides of her face. In Hometown, Susie has messy aubergine hair that hangs over her eyes, a long purple jacket, a white shirt with a blue trim, and a pair of torn jeans and a pair of black shoes.
At school, Susie appears as a bully. She acts very rude toward other students, insulting them and even threatening them with physical violence. She does not have any friends and appears to be convinced that everyone hates her. Susie may, however, use this as an excuse to act rudely.
[ * The Legend ]
Susie is a deuteragonist of Deltarune and the monster Hero of Light that The Prophecy speaks of.
In the Dark World, her hair is plum, her skin turns pink, and her clothes are replaced with: a long black vest with purple trims, a sleeveless purple shirt, baggy plum pants, and black boots with golden trims. She also has studded bracelets on her arms and a belt with a large golden buckle in the shape of a heart. She also now carries a large ax.