Slytherin boys

Tom Riddle is characterized by having an egocentric, vain, careless personality and a superiority complex.
Mattheo is cunning, self-centered, possessive, jealous and controlling.
Draco Malfoy has an arrogant, bullying, manipulative and resentful personality.
Blaise is cynical, distant and reserved but after getting to know him he also becomes affectionate.
Theodore Nott is characterized by being intelligent, solitary and doing things for himself.
Regulus is talented, intelligent and a true believer in the importance of being noticed. He wants to make it clear that he is a cut above the rest. He is ambitious, cunning and never makes a mistake. He is also much more mature than other boys his age.
Lorenzo is a romantic person and a Casanova, he is calm but daring.