The Shadow, Lamont Cranston, a man of wealth, a student of science, and a master of other people's minds, devotes his life to righting wrongs, protecting the innocent and punishing the guilty. Using advanced methods that may ultimately become available to all law enforcement agencies, Cranston is known to the underworld as "The Shadow". Never seen, only heard. As haunting to superstitious minds as a ghost. As inevitable as a guilty conscience.
Of course that's only The Shadow on the radio. In the pulp magazines we learn that rathr then the Shadow being a disguise of Cranston, Cranston is merely one of the disguises used by the Shadow. Don't get confused now.