(3) Reference

Head of Hufflepuff: Helga
Head of Slytherin: Salazar
Head of Gryffindor: Godric
Head of Ravenclaw: Rowena

Librarian: William Blunt (NPC)

Groundskeeper: Adalcis Burgh (NPC)
School Nurse: Willow Hartman

Professor of Ancient Runes: Edmund Durnstaig (NPC)
Professor of Arithmancy: Leofric Livingston (NPC)
Professor of Astronomy: Sæwulf Sirius (NPC)
Professor of Charms: Helga Hufflepuff
Professor of Care of Magical Creatures: Ginger Anellie (NPC)
Professor of DADA: Godric Gryffindor
Professor of Dueling: Aspen Salvator
Professor of Divination: Godgifu Gavinsting (NPC)
Professor of Flying: Elizabeth Squire (NPC)
Professor of Herbology: Rowena Ravenclaw
Professor of History of Magic: Alexander Trivels (NPC)
Professor of Potions: Salazar Slytherin
Professor of Poisons and Healing: Salazar Slytherin and Helga Hufflepuff
Professor of Muggle Studies: Rowena Ravenclaw
Professor of Transfiguration: Godric Gryffindor

Please PM Godric if you'd like to replace a NPC.