Obviously, Percy is the main character. There could also be some native Alaskan characters, like an Inuit elder who gives Percy some valuable advice or a young Alaskan hunter who becomes Percy's friend.
Perhaps some mythical creatures from Greek mythology could be in it too, since it's related to Percy. For instance, a hippocampus that somehow ended up in Alaskan waters. And don't forget about potential antagonists. It could be a new evil god or a powerful Alaskan spirit that is angered by Percy's presence.
Obviously, Percy Jackson himself. And Annabeth could also be there, helping Percy understand the new environment. There might be some new characters like an Alaskan native who is a seer and can guide Percy in his adventures.
One potential new character could be a scientist, Dr. Thompson, who is studying the strange phenomena in Alaska that are actually related to the magical world Percy is part of. He initially doesn't believe in the magic but as he witnesses Percy's powers, he becomes an ally. There could also be a group of Inuit shamans who have their own powers and traditions. They might initially be wary of Percy but then come to respect him and work together with him to solve a problem that is endangering both the magical and non - magical parts of Alaska.
Obviously, Percy Jackson himself. Then there could be Annabeth, his girlfriend, who might come to Alaska to support him or offer her strategic advice. Grover could also show up, using his nature - sensing abilities in the Alaskan wilderness. There might be new characters too, like local Alaskan demigods or spirits that Percy has to interact with, for example, a spirit of the northern lights who has its own powers and agenda.
Obviously Percy himself. There could also be some of his friends from his normal life who come to visit him in the wild or maybe even join him, like Annabeth. And then there could be various wild animals that act as characters, like a wise old owl or a friendly deer.
Maybe there is a social worker named Mrs. Johnson who is trying to help the homeless in the area. She tries to reach out to Percy, but he is initially hesitant because he has trust issues. These characters can all interact with Percy and shape his story while he lives on the streets.
Well, it could be about Percy exploring the unique Alaskan wilderness. Maybe he discovers some magical creatures that are native to Alaska in this fanfic.
Annabeth could be one of the characters. She might come to Tartarus to rescue Percy or be accidentally dragged in while trying to find him. Grover could also show up, using his nature - related powers to navigate the strange and dark environment of Tartarus. Another potential character could be Nico. Given his connection to the Underworld, he may be able to sense Percy's presence in Tartarus and come to his aid.
There could be a mysterious new student in the fanfic. This new student might have some secrets of their own and befriend Percy. They could be from a different place or have some special powers or knowledge. Additionally, there might be some school janitors or cafeteria workers who play small but important roles in Percy's school experiences, like giving him some good advice or helping him out in a difficult situation.
Obviously, Percy Jackson himself. Annabeth could also be there, as she is smart and would be interested in Percy's new - found fluency in Greek. Grover might tag along, adding his own unique perspective. And of course, Chiron, who has a deep knowledge of Greek culture and language, could play an important role.
One potential character could be a wise old hermit who lives in a secluded part of the paradise. He could offer Percy valuable advice and knowledge about the secrets of the paradise.