Head of House: Professor Horace Slughorn
Students of Slytherin House
| File | Role |
|---|---|
| Cassian Black | Slytherin student (3rd yr in 1939) |
| Marcus Muldoon | Slytherin student (1st year in 1939) |
| Nymphadora Goyle | Slytherin student (1st year in 1939) |
| Sean Perton | Senior year Slytherin in 1939, reading advanced Herbology |
| Serena Skuse | Slytherin student (1st year in 1939) |
| Tom Riddle | Slytherin student (2nd year in 1939) and future Dark Lord |
Slytherin Alumni
| File | Role |
|---|---|
| Armando Dippet | Headteacher of Hogwarts School of Witchcraft & Wizardry |
| Brenda (The Bruiser) Buttercup | Beater for The Bow Hammers Quidditch team. |
| Dandelion Bander | Proprietor of Secondhand Robes in Diagon Alley |
| Horace Slughorn | Professor of Potions at Hogwarts School of Witchcraft & Wizardry. Head of Slytherin House |
| Jackdaw Finch | "Professor of Herbology" at Hogwarts School of Witchcraft & Wizardry |
| The Bloody Baron | Slytherin House House ghost |