| | Conditions & Treatments | Blood Disorders What blood type is Professor Lupin O A B or AB? Professor Lupin is a fictional character in the Harry Potter series and therefore does not have a blood type Blood Disorders - Related Articles What blood types would the offspring of a parent with AB and other Ao be? Uses of Iron Tablets How to Use Vitamins to Prevent Anemia How can blood turn black? Why was the blood borne pathogen law passed? What is Marrow replacement process? Did Mary i you take a bath with blood?