Frater Barrabbas Tiresius is a practicing ritual magician who has studied magic and the occult for over forty years. He believes that ritual magic is a discipline whose mystery is unlocked by continual practice and by occult experiences and revelations. Frater Barrabbas believes that traditional approaches should be balanced with creativity and experimentation and that no occult or magical tradition is exempt from changes and revisions.

Frater Barrabbas is also the founder of a magical order called the Order of the Gnostic Star, and he is an elder and lineage holder in the Alexandrian tradition of witchcraft.