Mordred: Postulant
Mordred Ambrosius V, wizard extraordinaire and aspiring Sister of Perpetual Indulgence. Well, Postulant, technically, at this stage. From the Sisters of Perpetual Indulgence website...
"As a Postulant, you are a Member of the Order although you still have no rights. In addition to continuing to further your relationships within the Order, you are required to attend all of our meetings, most of our events and you must spend at least six hours in our Archives learning the history of the Order. You cannot wear whiteface or a wimple, but we do encourage you to wear festive garb that fits in with Order; a Catholic school girl's uniform, for example."
For more about the Sisters of Perpetual Indulgence (yes, they are a real thing), go here.