According to the Bible, Judas is the traitor. He even has a place in Dante's Inferno in the ninth circle of Hell, home only to three great traitors: Cassius, Brutus, and Judas himself.

But according to a recently uncovered gospel, maybe Judas wasn't the wretched traitor that Christianity and lore has made him out to be.

Ancient Text paints Judas a hero
Ancient Text Shows a Different Judas
Ancient Manuscript Suggests a New Relationship Between Jesus and Judas