Silas has thick, mahogany-brown hair that he keeps gathered in a messy leather tie at the nape of his neck. He sports a well-maintained but rugged beard that masks a jawline softened by age. His eyes are a striking, unnatural amber color, flickering like dying embers when he is frustrated. He moves with a twitchy, feline grace, always looking for the nearest exit. Despite his coarse, stained fingers that suggest a life of manual labor, he wears an exquisite, though frayed, silk cravat that seems entirely out of place for a man living in the shadows of dockyards.