Many people started to learn more about the SCO ever since they became an ally of the UWO, it's mostly because the secretive organization started to open up and expose its organizational intent to the public.
It's also wildly known that the SCO has a line of messengers that runs the organization.
Each of them was represented with a color of their own, adorning specific tasks that were bestowed by King John himself. Aside from their distinctive color from each other, there's no other way to differentiate them.
The SCO Messengers have the same outfit and are even identical in bodily appearance.
None of them has a stark contrast with each other, possessing the same height and muscle tone that is impossible to discern. On top of that, none of their faces were registered, always hidden behind a crow mask.
Other than King John himself, nobody knows the faces of the SCO Messengers.