Stephanie has dark blue eyes with purple eyeliner and long brown hair with a flower in her hair and pink lipstick. She wears a white earring, a blue sweater, similar to Mabel Pines from Gravity Falls, and also wears a gold skirt and pink shoes. Stephanie's voice is similar to Sophie Sanders from Bunsen is a Beast, albeit slightly higher.
Stephanie is shown to be a very smart student in Lyra Ubetcha Memorial School because she studies a lot and she likes to read books, and also knows how to read braille. Stephanie is a honor student and knows Tae-Kwon Do. Originally, she was the only honor student, before Felicity arrived and became the new honor student because of her high intelligence, thus becoming her rival.