Sibylle is a very sickly, shy demon who has a close relationship with Arno. She is a member of the Red Balloons, a resistance group housed in Demonica for demons and those who want to protect demons. Though she doesn't speak very much, she was never afraid to speak her mind to Arno, and was often most talkative around him.
Akhem is a Worlds Inspector, working under Malik. Because of his job as a Worlds Official, he is very controlling and takes his job extremely seriously. Akhem is very condescending and has an extreme hatred for demons due to the trouble they have caused The Worlds in the past.