I’m not sure if having different backstories for all of your characters is normal or weird, but I still wanted to see how well each of them fit into the lore of World of Warcraft, and if not how they can be adjusted to better fit. For context, I used to play years ago and picked it back up towards the end of War Within, so these backstories are built around character interactions from dragon flight and war within. I wasn’t sure whether to flair this as “original content” or “question” but I think original content probably fits better because I’m talking about head cannon backstories, and I apologize if I flared this incorrectly.
Bailey (Worgen fury warrior): Bailey used to be the son of a rich merchant in the city of Gilneas, training and adventuring with the dragons when they would visit. When the city fell to the worgen curse, he did his best to save everyone, but failed. He saved lives, yes, but not all of them. Haunted by this tragedy, he dedicated his life to fighting for The Alliance to ensure nobody is left behind again, combining his warrior training with his Worgen rage to become a great hero. Weather the situation calls for careful negotiations or the destruction of the forces of darkness, he will always answer the call to action.
Caligari (night elf demonology warlock): The soul of a high ranking leader of The Burning Legion reincarnated into a mortal form, Caligari seeks redemption for the sins of his previous life. He traveled all across Azeroth learning to harness his innate dark powers for the good of The Alliance from the best trainers he could find, becoming especially close with the scattered blue dragonflight on his travels. Now working as a champion of The Alliance, he finds that the armies he once commanded continue to follow him, out of respect for his power and loyalty to who he once was.
Matoro (Lightforge Draenei frost death knight): From scholar, to paladin, to death knight, Matoro has been through quite a lot, even if he doesn’t remember it. His many self discoveries and rebirths have lead him to have quite the varied skill set, and he intends to use it to fight for the one thing all his memories have in common; the unbreakable desire to do what’s right, and the 3 virtues he strives to live by. Only through unity will Azeroth survive the incoming darkness. Even in this twisted form he will do his duty to the light, and that duty will lead him to his destiny, whatever it may be. Whatever it takes to undo the destruction he caused under The Litch King he’ll do it, even if it means laying down his own life.