Does the Devil have a second in command?

Answer 1

Demonology, which is the scholastic study of demons and devils, and the various religious faiths that refer to demons, devils, or "the Devil," are all apparently silent on the question. More than a few fundamental "Christianist" interpretations of The Bible, however, especially in regard to its New Testament's very last book, The Apocalypse, or The Revelation, To John, describe an "unholy" Trinity that consists of Satan, his Anti-Christ, and their False Prophet; these three they identify as being the diabolical counterparts of the Father, the Son, and the Holy Spirit.

If these can be trusted, then perhaps the best analog of a second in command to Satan is his Anti-Christ.