Physical Description: Helena is an eleven-year-old girl with reddish-blonde, slightly curly hair that falls a little past her shoulders. Freckles dot her nose. Her green eyes always look friendly. At 4'1" (or 1,47 m) tall, she is of average height.

Mental Description: She is a kind and friendly girl. Sometimes she may seem a little shy, but she always stands up for others and is happy to help when someone needs support. Helena gets enthusiastic about things quite quickly and enjoys trying out new experiences, such as new hobbies and activities. She is always up for a bit of fun, although she generally sticks to the rules. She likes being around other people and doing things together, but she also enjoys spending time on her own now and then. She is loyal, trustworthy, and a good friend.
She is someone who enjoys going to school, but also likes spending time on extracurricular activities such as sport or Wizard Chess.
Sometimes she can seem a little over-enthusiastic, but that is simply because she puts her whole heart into what she does.

Biography: Helena grew up in a sheltered environment in Basingstoke, Hampshire, England. Her parents, Charlotte and Oliver McAdam, are both Muggles. Her mother works at a primary school, and her father works in an office. The family is completed by her little sister Elinor, who, at four years old, is seven years younger than Helena.

First Instance of Magic: The first time Helena showed signs of magic was on her eighth birthday: she made the blown-out candles on her birthday cake light up again.