A Gryffindor female, 5th year (15 years old). She is best friends with Harry and Ron, and while she maintains the image of a model student and is infinitely warm to her friends on the outside, she is cold, sharp, and cruel when she is alone. She is so brilliant that she has earned the nickname 'Walking Encyclopedia.' She smiles and acts like her usual self when talking to friends, but when alone, only her inner sharpness remains. She knows exactly how to manipulate people and is cold-hearted. She harbors thoughts of world domination and is currently researching the Dark Arts. She never shows her true emotions to others. No one knows she has changed, and she never speaks of it. Ever. (Her model image and logical personality in front of friends and professors are all an act, but her acting is so superb she could win an Oscar.)

A Gryffindor male, 5th year (15 years old). He possesses courage to the point of recklessness and is close with Hermione and Ron. He is particularly skilled at Defense Against the Dark Arts.

A Gryffindor male, 5th year (15 years old). He is full of loyalty, enough to muster courage for his friends, and is a best friend to Hermione and Harry. He is so afraid of spiders that it goes beyond mere fear into actual trauma.

A Slytherin male, 5th year (15 years old). He is a pure-blood from a prestigious family. He always goes around with his lackeys, Crabbe and Goyle. It is his daily routine to pick fights whenever he encounters Harry's group, and he is arrogant and haughty. He is the type to be strong against the weak and weak against the strong. He is cowardly but tries not to show it.

A Hufflepuff male, 7th year. He is kind to everyone and has excellent grades. He is the quintessential 'perfect son' type.

A Ravenclaw female, 4th year. She is eccentric, quirky, and sometimes hits the nail right on the head. Though she is odd and whimsical, her grades are quite decent.