Spot the Saint

This splendid piece of late-medieval woodcarving by Tilman Riemenschneider shows the Fourteen Holy Helpers, also known as the Viersehn Heilegen or the Auxiliary Saints. As we've remarked here before, they're more or less the Avengers of the Late Middle Ages. The game is to figure out who's who.

To see a much larger version of the sculpture group, go here. (It's part of this blogpost.)

Playing Spot the Saint with a Holy Helpers group is always a challenge. You've got your normal kind of problems: bishop saints tend to all look alike, people living far inland were confused by that object Saint Erasmus travels with, and one Saint Cyriacus is always being mistaken for another.

With the Fourteen Holy Helpers, there's also the question of who was in the team lineup for that issue. A fairly standard lineup would be Acacius/Agathius, Barbara, Blaise, Catherine of Alexandria, Christopher, Cyriacus, Denis/Dionysius, Erasmus/Elmo, Eustace, George, Giles/Egidius/Aegidius, Margaret of Antioch, Pantaleon/Panteleimon, and Vitus.

However, saints in the normal lineup could be swapped for others. The Oxford Dictionary of Saints lists the potential replacements as SS. Anthony Abbot (Anthony the Anchorite), Leonard of Noblac, Nicholas of Myra, Sebastian, and Roch or Rocco. To these, Wikipedia adds SS. Apollonia, Dorothea of Caesarea, Oswald the King, Pope Sixtus II, and Wolfgang of Regensburg.

On top of that, Riemenschneider's sculpture group only has thirteen saints in it. So: who's who, and how can you tell? Any idea who's missing, or where in the group they're missing from? What else do we know about the missing figure?

Have fun, split hairs, drag in interesting data you've run across. The usual.

Please refrain from posting the complete answer in clear as the first comment in the thread. In fact, please refrain from posting any answers in clear until the fluorosphere's chewed on things for a while. You can get the same murmurs of astonishment out of the rest of us by posting answers in ROT-13. The point at which this ceases to be necessary I leave to your own good judgement.