Sigma has been described as a desperate man. Someone who would latch onto anything that gives him a reason for his existence. He puts up the perfect act of the perfect casino manager, always putting up a front of being calm and composed, going out of his way to help his customers. Though, Sigma is a deeply insecure individual, panicking at any small inconvenience. He's deeply anxious and insecure. While he was shy at first, he suddenly got a little possessive.