Sometimes, there are female characters who are underestimated at first. But as the story progresses, they show their true potential. Maybe it's a shy girl who turns out to be an amazing artist and uses her art to inspire other girls to be confident and take charge in the world.
Often, there is a powerful vampire leader. This character is usually charismatic and has great strength and influence among the vampire community. They are the ones making the major decisions regarding the rule of the world. Another common main character could be a human who somehow gets involved in the vampire world, either as a captive or as a sort of liaison between humans and vampires.
Often, there will be a powerful and wise Pokemon like Mewtwo as a main character. Mewtwo has the intelligence and strength to lead and rule over humans. It can use its psychic abilities to communicate with humans and enforce its will.
Obviously, the main characters are the Powerpuff Girls themselves - Blossom, Bubbles, and Buttercup. They are the central focus as they are the ones usually getting tickled or doing the tickling in the fanfiction. Sometimes, villains like Mojo Jojo or Him might also be involved, either as the instigators of the tickle situations or as unexpected victims.
Since I haven't read it, I can't say for sure who the main characters are.
In 'golden girls novels', the main characters are often women at different stages of life. There could be a young woman starting out in her career, and she befriends some older women who have more life experience. These characters interact, share their stories, and together they form a sort of family unit. They support each other through things like break - ups, job losses, and family dramas.
In some 'girls hostel novels', there could be a girl with a special talent, such as being an amazing singer or a great painter. Her talent not only makes her stand out but also attracts others. There could also be a girl from a difficult family background, and her journey of finding hope and a sense of belonging in the hostel is an important part of the story.
Often, there are park rangers as main characters. They are the ones who first encounter the dragon - like creature. They might be in awe at first but then realize they need to either protect it or keep it from causing chaos in the park.
Often, there is a young human who discovers the world of dragons. This character is usually curious and brave, like a teenager named Alex who stumbles upon a dragon's lair and forms an unlikely friendship with a dragon.
Well, as the title implies, the main character is typically the only man. He could be an ordinary person thrust into this extraordinary situation, like a regular office worker who suddenly finds himself alone in the world.
Typically, it's the daddy who plays a crucial role, and his daughters, whether it's one daughter or multiple, are also central. The stories might focus on their relationship, so they are the key elements in these stories.