He particularly enjoyed sadistically taunting his brother and father about magic being real before killing both of them in cold blood. Upon obtaining the powers of the Deadly Sins, Sivana became malevolent and slightly psychotic, as he enjoyed using his newfound powers to hurt others. Sivana has little care for human life, as when Lynn Crosby disintegrated he showned no concern over her death. Sivana is a rather vindictive individual, as he went out of his way to get revenge on the Wizard for rejecting him and then his own family for abusing him as a child.Įver since Sivana was rejected by the Wizard after which he caused a driving accident, he became obsessed with proving that magic is real and releasing the Seven Deadly Sins, whom he felt were the only ones that appreciated him. As an adult, Sivana hates the concept of families, as when he held Billy's foster siblings hostage he described them and decorations with their pictures as disgusting.
The constant abuse from his family turned Sivana into a very cynical person who doesn't see good in others and lacks any empathy for anyone, which in turn made him vulnerable to the temptation of the Seven Deadly Sins. However, as a child, he suffered from terrible abuse from his father and his brother, causing him to live a life of mental pain under the shadow of his family. Ever since he was born, Thaddeus Sivana had been always known as a magnificent genius in physics, technology, science, and industry.