Maya, Naja’s Herald - Freida Pinto. She can act, and has the presence of the herald of a great protector.
Suresh, Architect of War - Wilmer Valderrama. Plays Carlos in From Dusk Till Dawn the series, and can def pull off being an Architect of War. That or Ice T. Because Ice T.
Generally in my head the dragons wouldn’t speak, but if they did:
Asura, Emberheart Drake - Jacob Tobia. Voices Double-Trouble on the new She-ra, this is the voice I have in mind when I imagine a dragon hunter that’s fickle about trust.
Nucifera, Keeper of Balance - Angelina Jolie. Nucifera is basically a split-personality dragon, which she can do, and she has a great voice to boot! But would also be cool to see a dual voice here, one for disorder, one for tranquility, but no idea on second voice!
Danav, The Grand Destroyer - Mark Hamill. Fire Lord Ozai. The end.
Naja, The Great Protector - Queen Latifah. I like her style.
Rashka, Jungle Demon - Will Smith was my choice here as well. Mostly because Raskha has a kind of scary story and it would be great to hear him voice something terrifying and somewhat villainous.
Arboralith, Nature Incarnate - Cate Blanchett. She sounds like nature incarnate lol, although her role in Ragnarok leads me to believe she could also be a fabulous Danav, she does destroyer quite well.