StarFan13 is a student at Echo Creek Academy. As her name suggests, she is a huge fan of Star Butterfly. StarFan13 has short brown hair with part of it tied in a small ponytail with a red scrunchie and bangs to the left and right of her forehead, similar to Star's own hairstyle. She has brown eyes, red square-rimmed glasses, a hot pink headband with a pair of cardboard cones pointing upwards, and pink hearts crudely painted on her cheeks. She has a short pug-like nose and a slight overbite, and she wears braces. StarFan13 usually wears a lavender T-shirt with a yellow star, what seems to be a backpack with a pair of wings attached, a turquoise skirt, hot pink pants, and purple shoes. StarFan13 has the typical characteristics of a fangirl: excitable and fixated on the subject of her fanaticism (Star Butterfly). She often tries to mimic Star's appearance and interests, like copying her favorite color in "Sleepover". StarFan13 has many pictures of Star in her locker, including a picture of Star with Marco Diaz and a picture of Star wearing her pajamas. She loves animals, especially cats, and volunteers at a cat shelter on weekends. In "Starcrushed", she picks up several of the kittens created from Star's "Sparkle Kitten Fireworks Shower" spell. She's good with tech stuff, having made a lamp in the style of Star's Wand, made her headphones look like Star's wand, and customized her laptop. StarFan13 says she has a crush on Star Butterfly. It is unclear whether her feelings are real or if they are the result of her fanatical obsession with Star. However, the Truth or Punishments Box accepts it as a truth.