So, during US3, several more members of the Descendants of Darkness were revealed as well as what dimension they were from. Here are the few that were revealed before the end of US3:

Descendant 1
Descendant 2
Descendant 4
Descendant 5
Descendant 8
Descendant 8-9-13
Descendant 11
Descendant 1-1-1
Descendant 1-9
Descendant 13
Descendant 13-13
Descendant 13-14
Descendant 14
Descendant 16
Descendant 1-22
Descendant 2-22
Descendant 3-22
Descendant 4-22
Descendant 23
Descendant 23-4
Descendant 23-0-4

These are just their Descendant aliases. As to who they are and what world they are from, I will reveal that in time. A few of them were revealed in US2.