Are there people who have claimed to be Jesus?

The Bible warns of false prophets, teachers and Messiahs throughout the Old Testament and New Testament. Throughout history we can see that many cult leaders have claimed to be Messiah. For example, Arnold Potter, who referred to himself as Potter Christ was a leader of the Latter Day Saints; William Davies, also a leader of the Latter Day Saints declared himself to be God the Father and his first son as Jesus Christ incarnate; Sun Myung Moon was a self proclaimed Messiah. Moon was a leader in the Unification Church.; Alan John Miller (A.J. Miller) and his partner, part of the Jehovah Witness cult, claim to be the reincarnate Messiah and Mary Magdalene. While these are just a few of the thousands that have claimed to be Jesus Christ or God, many people have fallen prey to their schemes. The majority of the men/women proclaiming to be Christ died either by suicide or various other means of a violent death. As we are in the End Times we can expect many more people to rise up and claim to be the counterfeit Messiah as scripture adamantly warns:

MATT. 7:15 “Beware of the false prophets, who come to you in sheep’s clothing, but inwardly are ravenous wolves. 

ACTS 20:28 Be on guard for yourselves and for all the flock, among which the Holy Spirit has made you overseers, to shepherd the church of God which He purchased with His own blood.
ACTS 20:29 I know that after my departure savage wolves will come in among you, not sparing the flock;
ACTS 20:30 and from among your own selves men will arise, speaking perverse things to draw away the disciples after them.
ACTS 20:31 Therefore, be on the alert, remembering that night and day for a period of three years I did not cease to admonish each one with tears. 

1JOHN 4:1 Beloved, do not believe every spirit, but test the spirits to see whether they are from God, because many false prophets have gone out into the world. 

However, these False Prophets will also ultimately face God's judgment in the last days. Additionally, we suggest reading all of 2 Peter 2, as Peter explains the matter of False Prophets leading many into their perilous demise. 

For more information we suggest doing our Matthew, Acts, End Times, and full Revelation Study.

You may also find the following articles on our website helpful in addressing your question:

Are Mormons truly Christian?
Do False Prophets know they are False Prophets?
Explain "Good" and "Bad" Fruit