What were the names of the people in the last supper?

The 12 Men were the 12 Disciples. The man seated next to Jesus depicted in the famous Last Supper painting is John (not John the Baptist) son of Zebedee, the author of the Book of John and the three Epistles of John. John and James (a/k/a James the Greater), son of Zebedee and another disciple, were brothers. Peter, who some consider to be Jesus' strongest follower because he would take immediate action on whatever Jesus requested and who had a brother named Andrew who was a disciple as well. Andrew previously alerted Peter of Christs' arrival. Matthew the author of the Book of Matthew; Philip (not much said about him); Bartholomew; James, son of Alphaeus (a/k/a James the Lesser), Thomas, the disciple who did not believe that Jesus had risen from the dead. Thaddeus, Simon the Zealot (not Simon Peter) and Judas Iscariot (the betrayer of Jesus) Note: After Jesus' resurrection, Matthias was the replacement for Judas Iscariot since he had hung himself.

Addition

Well done the first answerer. May I just point out one unimportant thing and that is that even though the twelve were disciples they were in fact Apostles for each were ordained by Christ to the Prieshood thereby giving each the authority to go and preach the gosple.