Yes these two are now canon characters

There's Hasira, Hasira!Brine, and Utulivu for the Earthen characters

Hasira!Brine is the first Vimelea, a demon who took control of Hasira (vampire) and turned the body into a Brine. He later becomes Lucifer's lover and is why God said no homosexuality (not what I actually believe but is there for story reasons. It's how God and the angels can find Lucifer and Hasira more easily)

Hasira is the sweet vampire that was promised to Michael the archangel but was corrupted by a fruit from the Tree of Knowledge (the fruit Adam and Eve ate in Genesis)

Utulivu is the first Aetherian and Hasira's archenemy. He and Hasira get into a battle and both are severely injured before the Moirai step in and take the two away to heal for the final battle

Notch and Herobrine are the Minecraftian versions

Herobrine, as stated sometime before, is a Vimelea, controlling his host, Hasira. He doesn't find out that he's a Vimelea until his 100k birthday (happy birthday Hero ^_^). His hair is brown with grey streaks, while both versions of Hasira have silver hair. Note: Herobrine is a first generation Creator and the younger of the sole two Vimelea Creators

Notch doesn't actually exist. He is Utulivu. Utulivu's memories were locked away by Clotho and gifted Creator powers. When his memories return, his Creator powers disappear and he dies minutes later from blood loss (gee thanks Hasira!Demon)

Atropos only cares about Herobrine, Ashton Persson, and Lucifer winning the war against God. She planned that Herobrine would survive no later the circumstance after the battle of Lucifer vs God and would later give Herobrine to his destined mate (the elder Vimelea Creator)

Clotho only cares about Earth, Markus Persson, and God winning the war against Lucifer

Lachesis cares about everyone (mostly Steve and Alekos) but she would rather see God win

Lucifer was led astray by Atropos and was corrupted to what he is now viewed as. He takes Hasira!Brine as his lover. He is the most beautiful angel and God's favorite before the Fall

Michael is the eldest archangel and leader of the angels against Lucifer. He planned to take Hasira as his lover before Lucifer corrupted the vampires