Judas Iscariot
Judas Iscariot (died AD) was a disciple and one of the original Twelve Disciples of Jesus Christ. According to all four canonical gospels, Judas betrayed Jesus to the Sanhedrin in the Garden of Gethsemane by kissing him and addressing him as "Rabbi" to reveal his identity to the crowd who had come to arrest him. His name is often used synonymously with betrayal or treason. Judas's epithet "Iscariot" most likely means he came from the village of Kerioth, but this explanation is not universally accepted and many other possibilities have been suggested.
Islamic views on Jesus' death
According to the Gospel of Barnabas it was Judas, not Jesus, who was crucified on the cross. This work states that Judas' appearance was transformed to that of Jesus', when the former, out of betrayal, led the Roman soldiers to arrest Jesus who by then had already ascended to the heavens. The narrative states this transformation of appearance was unnoticed by the followers of Christ and his mother Mary. The Gospel of Barnabas then mentions that after three days since burial, Judas' body was stolen from his grave with rumors spreading of Jesus being risen from the dead. In following with Islamic lore, when Jesus was informed in the third heaven about what happened he prayed to God to be sent back to the earth, and later descended and gathered his mother, disciples, and followers and told them the truth of what happened. He then ascended back to the heavens, with the narrative continuing Islamic legend mirroring Christian doctrine of returning at the end of times as a just king.