Adam appears very egotistical, misogynistic, and unsympathetic. As leader of his Exorcist army, he takes his stance as the Exorcists' head figure very seriously, sending antagonistic threats towards demons and anyone for standing in their way or whoever disobeys his command. He also displays traits of extreme narcissism and chauvinism, believing himself the perfect man due to being the first and claiming he has never made a mistake in his life, since he was the first man to be born on Earth.