sadist

n. 虐待狂

Claude was probably a humbug, whose vanity, ambition, and intelligence led him to carve out a niche as the wickedest man in the world; there is always room for a sadist at the top.

克劳德或许不过是个骗子，他的虚荣、野心和才智使他在世上恶人中争得魁首之名：有残忍癖，总能爬上顶端。