Mitra/Mithra is confirmed to be the leader of the Pantheon, and Naraka refers to her as "his woman". Nine Divnities have been assembled: The seven Heavens (Mithra, Muzan, Satanael, Mercurius, Marie, Hajun and the Myriad of the Dawn) along with Reinhard and Ren.
Oddly enough, it's also stated they need two more divinities, which is odd given we have nine out of ten. Perhaps The Myriad aren't counted for some reason?
It may be already known to some, but Naraka is voiced by Maeda Takeshi/Renaissance Yamada, who also provided voices throughout the Shinza Banshou series' run as each game's resident gun toting rascal: Judas in Paradise Lost, Shirou in Dies Irae and Sukuna in Kajiri Kamui Kagura.