According to the Bible what does Satan look like?

Answer 1

A red dragon with 7 heads and 10 horns. "And there appeared another wonder in heaven; and behold a great red dragon, having seven heads and ten horns, and seven crowns upon his heads. And his tail drew the third part of the stars of heaven, and did cast them to the earth . . . And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him." (Revelation 12:3-9) Like lightning.

18And he said unto them, I beheld Satan as lightning fall from heaven.Very beautiful. This reference, literally to the "King of Tyrus" has been commonly seen as applying to Satan himself, especially as such an earthly king could not have been 'in Eden' as Satan certainly was. All the other 'facts' fit as well.

12Son of man, take up a lamentation upon the king of Tyrus, and say unto him, Thus saith the Lord GOD; Thou sealest up the sum, full of wisdom, and perfect in beauty. 13Thou hast been in Eden the garden of God; every precious stone was thy covering, the sardius, topaz, and the diamond, the beryl, the onyx, and the jasper, the sapphire, the emerald, and the carbuncle, and gold: the workmanship of thy tabrets and of thy pipes was prepared in thee in the day that thou wast created. 14Thou art the anointed cherub that covereth; and I have set thee so: thou wast upon the holy mountain of God; thou hast walked up and down in the midst of the stones of fire. 15Thou wast perfect in thy ways from the day that thou wast created, till iniquity was found in thee.

Answer 2

You never know what Satan looks like. Satan is a shapeshifter, in The Bible he has appeared as a serpent, a dragon, a lion and an angel of light. Most of the times, when Satan launches a his attack, he does it by proxy, through someone close to you. Satan used Peter to try and tempt Jesus to forgo the cross and Jesus immediately knew who He was speaking with: Matthew 16:22-23 - "Then Peter took him, and began to rebuke him, saying, Be it far from thee, Lord: this shall not be unto thee. But he turned, and said unto Peter, Get thee behind me, Satan: thou art an offence unto me: for thou savourest not the things that be of God, but those that be of men." Satan is the energizing force, the motivator of the unregenerate, who live in spiritual darkness, and that is who he mostly uses:

Ephesians 2:2 - "Wherein in time past ye walked according to the course of this world, according to the prince of the power of the air, the spirit that now worketh in the children of disobedience"

He is a murderer and a liar from the beginning (John 8:44), he is the accuser of the brethren (Revelation 12:10) So, even though we can't know what Satan looks like, we can recognize him through his work.

Additional Comments:

And he and his followers can appear Christ-like:

2 Corinthians 11:13-15New King James Version (NKJV)

13 For such are false apostles, deceitful workers, transforming themselves into apostles of Christ. 14 And no wonder! For Satan himself transforms himself into an angel of light.15 Therefore it is no great thing if his ministers also transform themselves into ministers of righteousness, whose end will be according to their works.