There could be a group of friends. They are all different in personality. One is the adventurous type, another is more laid - back. They go to the park to have a barbecue but end up getting into all sorts of comical situations, like the food getting burned or a football getting lost in the bushes.
It could be a young boy who loves nature. He goes to the park every day to observe the birds and plants. One day, something extraordinary happens, like he sees a rare bird, and that's the start of his adventure in the park.
The main characters could be a group of adventure - seeking teenagers. They are always looking for new thrills at the beach, like cliff diving or trying out new water sports. Their day at the beach would be filled with adrenaline - pumping activities.
One option could be a strong - willed leader type of character, someone who has been through a lot and has the experience to guide the team. For instance, an ex - military officer.
Obviously, the main characters would be the members of BTS themselves. Each member has a unique personality and role within the group, and they could all play important parts in the story.
Perhaps it's a story of friendship. Two strangers meet in the park. They start chatting and end up spending the whole day together, sharing their life stories, having a picnic, and playing games. They form a deep bond by the end of the day.
A male dinosaur trainer and a female geneticist. The trainer is all about the hands - on work with the dinosaurs, while the geneticist is focused on the science behind them. Their different worlds collide and love blossoms.
Given that it's a South Park fanfic, we can assume that Stan, Kyle, Cartman and Kenny are central. But it's possible that the 'dusk of stars' aspect could bring in other characters. Maybe there's a mysterious figure who appears only during the starry dusk and has some connection to the events that unfold. It could also be that the parents of the main kids play a more significant role than usual if the events in the dusk of stars somehow affect the whole town. For example, Randy might get involved if there's something strange going on with the stars that impacts the local environment or economy.
Alan Grant is often included. He's a well - known character from the original movies and his expertise in paleontology makes him an interesting addition to fanfics. Ellie Sattler is also common. Her strong - willed and intelligent nature gives a lot of scope for different storylines. Ian Malcolm is another popular choice. His chaotician views and sarcastic remarks can add humor and depth to the fan - created stories. And of course, the park's owner, John Hammond, is often written about as his decisions are at the heart of the Jurassic Park concept.
Prince Gumball would be an obvious choice as he is a well - known prince in the Adventure Time world. Finn could also be a main character, as he often gets involved in the affairs of the kingdoms. Jake, with his shape - shifting abilities, would add an interesting dynamic. Princess Bubblegum could play a crucial role too, as she is closely related to Prince Gumball and the politics of the Candy Kingdom.
It could be John Lennon - like character as the main character. He has that rebellious and creative spirit which could lead the story. He might be the one who first discovers the connection between the two worlds and tries to make sense of it all.
Most likely the main characters would be the well - known ponies from Equestria like Twilight Sparkle, Pinkie Pie, Rainbow Dash, Fluttershy, Rarity and Applejack. They are the core group of friends in the Equestria world.