So I decided to make a second entry for this challenge. This time, it's a party of Native Americans in the early 1500s.
The paladin: an Incan officer and distant relative of the royal family who fled the empire after Huayna Capac died of smallpox and his life was threatened by the civil war that ensued. He praises the Sun and seeks to one day return to the homeland and restore justice in the Incan empire.
The barbarian: an Aztec eagle warrior. Once a distinguished warrior of the Tlatoani, now the world is falling apart before his eyes. There is no more a true Tlatoani, no more great temples, and sacrifices to Huitzilopochtli have stopped. It is only a matter of time before the stars descend upon the earth and drown it in darkness, and the eagle warrior no longer has anything to live for. Now he wanders the earth, spilling blood in sacrifice with no regard for his own safety.
The ranger: a hunter and the last person from a tribe wiped out by the unseen-before plagues. He has followed the group for a chance to survive, but is starting to suspect that they attract more trouble than they repel. Out of the group, he knows the land they're in the best.
The necromancer: an exiled Inuit angakkuq, or shaman, from Greenland. Any angakkuq has a connection with the spirits and can use it to help people, but this one saw greater possibilities. It became an open secret that anybody who slighted her would not return alive from the next hunt. Eventually the reason was found out - she made tupilaqs, monsters built out of the remnants of many beasts to find and kill an enemy. Yet nobody dared to harm the sorceress, and she was only expelled from her village. After wandering the tundra for decades, she has perfected her mastery of rituals and even conquered death itself. Now she has come to the mainland, and, amidst the chaos brought from the east, plans to use spirits and carcass creatures to make the world bow to her. The rest of the party are but stepping stones to much, much greater plans...