Skulduggery, despite his bizarre appearance which he hides while in public with a disguise, is something of a dapper gentleman. He has a polite, old-fashioned way of speech, and a velvety-smooth voice which enraptures Valkyrie when they first meet. As well as a powerful sorcerer, more specifically an Elemental, he is particularly enthusiastic about detecting, always searching for clues, much to Valkyrie's and Tanith's chagrin. He is also a flamboyant egotist, vocally exalting his own plans, complimenting himself, and showing off his magical abilities to Valkyrie, at one point walking on the ocean's surface after falling from a cliff.