There could be antagonists as well. Perhaps a rival forensic team or a criminal who is trying to cover up their crimes and constantly causing trouble for the main characters. Their presence would create conflict and drive the plot forward in the fanfiction.
I'm not entirely sure without reading it, but it might feature characters similar to those in the Bones series, like Temperance Brennan and Seeley Booth. They could be the main focus, with their relationship and their work as forensic anthropologists being central to the story.
Brennan and Booth are obvious choices. Their relationship is at the core of the show, so exploring different aspects of it in fanfiction can be really interesting. You can dig deeper into their pasts, like Brennan's childhood traumas and how that affects her relationship with Booth, or Booth's military experiences and how they shape his views on love and commitment.
Since we don't really know the specific 'good bones story', it's difficult to say who the main characters are. They could be a family if it's a story about a house with good bones and their journey to make it a home. Or it could be a group of friends in a story about a community with good bones.
The main character is a girl whose life gets turned upside down when she enters the Shadowhunter world. There is also Jace, a skilled and somewhat cocky Shadowhunter. Then there's Simon, the girl's best friend who gets dragged into this strange new world too.
I don't know for sure as the 'bones love story' is not clearly defined. It could have characters like a bone collector named Jack and a museum curator named Lily, who fall in love over their mutual interest in bones.
Other monsters from the Undertale world can also be main characters. For instance, Toriel might be a mother - like figure to Baby Bones in some fanfictions. She could offer him guidance and protection, adding a different dynamic to the story.
The main characters in this story are Susie Salmon, the victim. She is a young girl full of life before her untimely death. Her father, Jack, is a loving but tormented man after her death. He is driven by the need to find out what happened to his daughter. Abigail, Susie's mother, is another main character. She has her own set of emotions and actions in response to the loss. And of course, Mr. Harvey, the murderer, whose actions and motives are an important part of the story.
Since I don't know the exact 'funny bones kids story', it could be a group of kids like Tom, Jerry (not the cat - and - mouse pair but just two kids named so), and Lucy. They might be the ones getting into all the funny situations.
The main characters are Susie Salmon, the young girl who is murdered. Her father, Jack Salmon, who is determined to find her killer. Her mother, Abigail Salmon, and her sister Lindsey Salmon. Also, there is Mr. Harvey, who is the prime suspect in Susie's murder.
The main characters include the murdered girl, her family members like her father and mother, and her sister. There's also the detective who is investigating the case.
The main characters are Joel and Ellie. Joel is a tough, grizzled survivor who has seen a lot in the post - apocalyptic world. Ellie is a young girl with a special immunity to the infection that has ravaged the world.