We can now see for the first time the face of Roman Emperor Julian who despite his rejection of Christianity, and his promotion of Neoplatonic Hellenism in its place, caused him to be remembered as Julian the Apostate, he was man of unusually complex character who was a military commander, a theosophist, a social reformer, and an educated man of letters.
We also see the face of his predecessor Emperor Constantius II in 3D whose reign saw constant warfare on the borders against the Sasanian Empire and the Germanic peoples in the west, while internally the Roman Empire went through repeated civil wars, court intrigues, and usurpations.