Lin can be a very interesting character to center a fanfic around. He's loyal to Naru, but also has his own thoughts and feelings. You can explore his internal conflict, like his struggle with his own psychic powers. Another good character is Monk. His comical personality and his expertise in religious exorcisms can add a lot of flavor to a fanfic.
Ayako is also a good option. Her knowledge of traditional Japanese exorcism methods and her strong - willed personality can be the basis for many great stories. You could write about her trying to prove the effectiveness of her methods in a modern - day setting against the more scientific approaches of the other team members.
In addition to Molly and the ghost, the other spirits in the show can also be great characters to focus on. They can bring in different elements of the ghost world, like their own unique powers or cultural references from the afterlife. This can add more complexity and mystery to the fanfic.
Philip and Elizabeth Jennings are obvious choices. Their complex relationship and double lives are full of potential for fanfic exploration. You can create scenarios that further test their loyalty to each other and to their country.
Jack is a great character to focus on. He's the main character, so there's a lot of material to work with. His growth in martial arts and his relationships with the other characters are rich areas to explore. For example, you could write about his struggle to master a new move and how his friends help him.
I think focusing on the Wattersons family as a whole can be really interesting in a Gumball fanfic. You can show their family dynamics, like how Richard's laziness affects the household, or how Nicole's strictness is both a help and a hindrance. Then there are the friends like Carrie, the ghost girl. Her spooky nature and her friendship with Gumball and the others can add a unique element to the story. And Tobias, with his one - sided crush on Penny, can also bring in some elements of unrequited love and jealousy into the fanfic.
Austin and Ally are the main characters, so they should be at the center. However, Dez can't be ignored. His wacky ideas for Austin's music videos and his general goofiness can create some hilarious scenarios in a fanfic. You could also explore more of the relationship between Dez and Trish, which is often overlooked in the show.
Jack Frost is a very popular choice. His mysterious past and his cool powers make him an interesting character to explore. You can dig into his feelings of isolation before becoming a Guardian and how he's changed since then.
Fat Amy is a great character to focus on. Her larger - than - life personality and unique sense of humor can bring a lot of fun to a fanfic. You could write about her secret talents or her family back in Australia.
Nanisca is an obvious choice. She is the central figure in the movie, so there is a lot of material to work with. You could explore her leadership further, her past traumas, and how she continues to grow as a leader.
Definitely the main character's closest friends or allies. Their relationships can add depth and emotion to the fanfic. Also, antagonists are important. A well - developed villain can create conflict and tension. You can explore their motives and make them more than just a one - dimensional 'bad guy'. And don't forget about those characters who seem minor at first but have hidden potential or secrets.
Star - Lord is an obvious choice. His dual identity as a human from Earth and a galactic hero gives a lot of scope for character exploration. You could write about his struggle to balance his two lives, or how his memories of Earth influence his decisions in the galaxy. Drax is also interesting. His quest for revenge and his unique way of seeing the world can be the center of an engaging fanfic.