Satan is also known as the Devil, and sometimes also called Lucifer in Christianity.

Although Satan is generally viewed as evil, some groups have very different beliefs. In Theistic Satanism, Satan is considered a deity who is either worshipped or revered.

Satan is a symbol of virtuous characteristics and liberty. Satan's appearance is never described in the Bible, but, since the ninth century, he has often been shown in Christian art with horns, cloven hooves, unusually hairy legs, and a tail.