It was Peter.
John 13:8, 9 - Peter said to Him, "You shall never wash my feet!" Jesus answered him, "If I do not wash you, you have no part with Me." Simon Peter said to Him, "Lord, not my feet only, but also my hands and my head!"
[NKJV]
Judas Iscariot
All the disciples were later called Apostle's except Judas of course. So Andrew was, yes.
Jesus was at the last supper, I think Judas sat next to him, as Jesus said the betrayer is dipping in the same bowl.
Judas
Judas betrayed Jesus he was not there hen he was in the garden.
Judas Iscariot was an Apostle, and the Romans knew where to find Jesus because of Judas.
It was Judas Iscariot.
In the last supper Judas was sitting near Jesus. then only was it possible for him to dip into the same bowl of food.
No. Judas betrayed Jesus to the chief priest and elders.
Judas left the supper early in order to meet with the Jewish authorities to lead them to where Jesus was so they could arrest Him. Judas showed them whom Jesus was by kissing Him in salutation as was the custom of the day.
Matthew and Mark have Jesus announced his betrayal at the Last Supper while they were eating. "Now when the even was come, he sat down with the twelve. And as they did eat, he said, Verily I say unto you, that one of you shall betray me."Luke and John have Jesus announced his betrayer after they have eaten the Last Supper. Matthew and John have Jesus identify his betrayer. Mark and Luke have Jesus did not identify his betrayer. Matthew have Jesus disclose his betrayer by an implied affirmative answer to Judas'. Judas asked; "Master, is it I?" Jesus said unto him, Thou hast said" John have Jesus disclose his betrayer by giving Judas a sop. "Jesus answered, He it is to whom I shall give a sop, when I have dipped it. And when he had dipped the sop, he gave it to Judas Iscariot." Luke have Satan enter Judas before the Last Supper. John have Satan enter Judas after the Last Supper.
Judas- he betrayed him with a kiss on the cheek.(Mark 14:43-46)(Luke 22:47+48)