“There was Judas Iscariot,
Who betrayed him.”
καὶ Ἰούδαν Ἰσκαριώθ, ὃς καὶ παρέδωκεν αὐτόν.
Judas Iscariot can be found in all the lists of the apostles in Matthew, chapter 10:3-4, and in Luke, chapter 6:14-16. However, Mark gave him special attention at the end. He named him (καὶ Ἰούδαν Ἰσκαριώθ). Then he said that he was the one who betrayed Jesus (ὃς καὶ παρέδωκεν αὐτόν). The list was now complete.