As a Sinner demon, Sir Pentious had a snake-like appearance with a body color predominantly in charcoal grey. His eyes had cerise sclera with black pupils, and a mouth with sharp yellow teeth, two of which were long snake-like fangs. Sir Pentious is bombastic, flamboyant, short-tempered, temperamental and persistent, and his personality seems to take cues from the classic "mustache-twirling" stock villains. According to Husk, Sir Pentious is a lonely boi who likes to watch others while they rest