The Last Supper, Judas and the other apostles, Joos van Cleve

by biels

In the painting The Last Supper by Joos van Cleve, there seems to be 14 depicted on the painting. But as far as i know Jesus only had 12 disciples, which means there should be 13 not 14 in the painting. Do any of you know who the last guy is? Here is the link http://www.christianiconography.info/Wikimedia%20Commons/ceneJoos.html

GreensburgZombie

I only count 12. The man on the left is a servant.