From left (heads): Bartholomew, James the Younger, Andrew, Judas Iscariot, Peter (Simon), John, Jesus Christ, Thomas, James the Older, Philip, Matthew, Judas Thaddeus, Simon Zealotes.
Note: Judas Iscariot leans back so his head is to the left of Peter. Judas, the only disciple facing away from the viewer, carries a bag of money in his hand, while Peter has a knife rather awkwardly in his hand behind Judas’ back.