Calista wears shoulder length wavy lob blonde hair she dyes green often. Her eyes are silver. She has fairly pale skin and a scar across her cheek from an accident when she was young, she requested her family not heal it with magic because she thought it looked cool. She hardly ever smiles and typically has a dull look on her face.

She tends to be very cold, sarcastic, and rude unless she seems you worthy of her care in which she can still be cold but shows the ways she cares in little things. She is pretty competitive and tries her best in every subject, she feels the need to succeed and help her friends do their best. When you befriend her she is still sarcastic but enjoys the quiet and will have conversations and occasionally a chuckle or two. She is very ambitious to be the top of her class and will often throw herself into things with full focus. She gets frustrated easily when she doesn't understand things and overly excited when she does well.

Calista had a very chaotic home life. Her family is all purebloods who believe in extreme competition and rising through the ranks. Both her parents were Slytherin, as were her grandparents. She had 3 brothers. Also Slytherin, but two passed. The one alive is a year older then her and has been at Hogwarts for a year. His name is Xander. But they live in different homes. Calista lives with her grandmother because she got tired of her family's expectations. She adores her grandmother who is a kind and older lady. Calista likes being in a seperate household from her brother because they don't get along. She has mostly stuck to herself but has one friend of the name of Evander Crowe, they met since his family is also pureblood. She doesn't quite know many people she finds acceptable to keep around.

Calista's first experience with accidental magic happened when she was 5 years old. Her brother Xander had taken her training broom for himself because his broke when he was playing with their brothers. She got so angry she stamped her feet and set the broom on fire in her hands. Her parents had rushed over to put the fire out and make sure both kids were okay. Her parents were proud after ensuring both kids were unharmed. Having been glad she showed potential. She was shocked and excited to have done it.