Maybe a young boy who is curious about the world and always dreams of adventure. He finds the time - travel plane by accident and embarks on a journey through time. Along the way, he meets different people from various time periods, learns valuable lessons, and grows into a more mature and understanding person.
It could be a pilot. Since he's in control of the plane, he would be in a great position to lead the time - traveling adventures. He could use his flying skills to navigate through different time periods.
A pilot could be the main character. He's experienced in flying regular airplanes, but now he has to deal with the unexpected time - travel capabilities of this special plane. He has to be brave and resourceful to navigate through different time periods.
In a time travel plane story, the plane could be an ancient, magical plane that has the power to travel through time. The main character, a young adventurer, stumbles upon this plane and decides to take it for a ride. He travels back to the time of the dinosaurs and has to survive in that prehistoric world. Along the way, he discovers secrets about the origin of the plane and how it can be used to change the course of history.
Since I don't know the details of the 'plane girl story', it's hard to say for sure. But surely the girl is one of the main characters. There might be other characters like her family members, friends, or people she meets on the plane.
Without more information about 'the first time travel story', it's difficult to name the main characters precisely. But common types of main characters in time - travel stories include a person with a special ability or gift related to time. Maybe they have a strange dream that leads them to time - travel. There could also be an antagonist who tries to use time travel for their own malicious purposes, like changing history to gain power.
Obviously, Percy Jackson could be a main character. He has a lot of experience and his powers would be useful in different time periods. Annabeth Chase too, with her intelligence she could figure out how to deal with the challenges of different eras. Jason Grace might also be a main character as his leadership skills could come in handy during time - travel adventures.
It could be a time - traveling villain from the future who wants to change the past to gain more power in their own time. They might try to stop Naruino from achieving their time - travel goals.
I'm not sure specifically who the main characters are without reading the '13 time travel stories' in detail. But they could be scientists who are experimenting with time travel technology and end up being the ones who go on these time - traveling adventures.
Obviously, Harry Potter himself could be the main character. He has a lot of experience dealing with dangerous situations, so he would be a natural choice to lead the efforts to survive the plane crash and deal with any subsequent magical threats.
Aragorn could be the main character in a Tolkien time travel story. He could travel back in time to learn more about his ancestors and the ancient kingdoms of Men. This would make him an even more powerful leader in his own time as he would have knowledge of the past mistakes and victories of his people.
The main antagonist could be a virus that has infected the game's time - travel mechanism. This virus is spreading chaos throughout different time periods in the game world. It's trying to erase certain characters or events from history, and Ralph has to stop it. The virus could take on different forms in different time periods, making it very difficult for Ralph to combat.