Suspiria, while tall, has a light stature. She's rather narrow and it doesn't look like it would take much to knock her over. She has wavy, dark brown hair that goes just past her shoulders. She either leaves it down or puts it up in a “milkmaid braid”. She has white skin with a pale complexion, and light blue-green eyes. She wears a light amount of makeup, mostly in nude shades and nothing too eye-catching. As for clothing, she prefers wearing anything related to space or nature, though spooky occult items are also part of her aesthetic. She likes homemade items as well, such as knitted hats, sweaters, and scarves. As far as shoes go, she likes wearing boat shoes and flats.

Suspiria had an unstable childhood, to say the least. Her life featured many revolving households as she grew up in the foster care system. Since her mother was Hecate, she couldn't really raise Susperia, and the father wasn't looking to be a long term dad. She drifted in the foster care system for years on end, never understanding why her parents gave her up or if she’d ever get to see them again.

The lack of a parental figure in her life and a stable family made it difficult for her, emotionally. Being separated at a young age from her parents was the foundation for most of Suspiria’s self-esteem issues. She felt utterly alone during this time. At first, she didn’t understand why she was always being passed along between different families except for, as the small inkling of a thought in the back of her head suggested, the idea that perhaps, she was always doing something wrong so she had to leave. As she grew older, she understood that this wasn’t the case, but the shadow of doubt always lingered and on occasion, this sorrow would engulf her.

However, being in so many different family arrangements, it made her open minded and tolerant of different people. She became self-reliant and independent because she had to be, but she never wanted to become cold and hardened to the world around her.

Originally she was born male, and her name was Fillan. She always had longer hair and used to speak in a quiet, low voice. She never quite felt comfortable with her own body or the very notion of masculinity, and never had many male friends growing up. Due to lack of knowledge about LGBTQ+ and her own nature of passively accepting society's gender norms and standards, she persisted as a male for virtually all of her childhood.

It wasn't until her first year at camp half blood that she began to seriously consider that she might be transgender. She took cautious steps at first, and didn't come out to everyone. Even though she knew in her heart of hearts that she was a woman, she was very confused and unsure of how to go about it. She had to reach out to her closest friends at the time for advice on her dilemma and they helped her with her gradual transition.