In the beginning of the story, he is
an inmate at thelunatic asylumoverseen by Dr. John Seward. He suffers from delusions
which compel him to eat living creatures in the hope of obtaining their
life-force for himself. Doctor John Seward diagnoses him as a "zoophagous
maniac", or carnivorous mad man. During the course of the novel, he is
revealed to be under the influence of Count Dracula.If he helps Dracula then Dracula promises to provide him with an endless supply
of food.