Well, obviously Robin the Girl Wonder is a main character. She's often depicted as brave and intelligent. Then there might be other characters like Batman who could be her mentor or partner in some fanfics. Also, villains like the Joker might appear to create conflict.
Robin is the central figure in these stories. But we can't forget about Alfred, Batman's butler. He sometimes gives advice to Robin too. And then there are the various rogues in Gotham that Robin has to deal with, such as Two - Face. These characters together create the dynamic world of Robin the Boy Wonder stories.
One plot could be that Robin and Wonder Girl are magically swapped in powers and abilities for a day. They have to figure out how to use each other's powers while still facing the daily threats in their cities.
A fanfic might explore their relationship in more depth. For example, they could start as comrades and gradually develop a deep friendship or even a romantic connection. They might share their insecurities and dreams while on a mission together, which could strengthen their bond. It could also involve how their different upbringings - Robin's in the shadow of Batman and Wonder Girl's in the Amazonian culture - influence their interactions.
In the 'wonder girl story', the main character is the wonder girl, of course. There could be a mentor figure, perhaps an old wise woman or a mysterious man who guides her on her journey. And then there might be some antagonists, like a jealous rival or an evil force that tries to stop her from achieving her goals.
One common theme is friendship. They are often shown as good friends who support each other through tough times. For example, in many fanfics, they'll be there for each other when facing a difficult villain or a personal crisis.
One great fanfic could be one where Robin and Wonder Girl team up for a secret mission in Young Justice. They might start off as just teammates but gradually develop a deeper understanding and friendship. Maybe they face a powerful villain together and have to rely on each other's unique skills. Robin's detective skills combined with Wonder Girl's super strength could make for an exciting story.
One common theme is the power dynamic between them. Red Robin is known for his intelligence and strategic skills, while Wonder Girl has her superhuman strength. Writers often explore how they balance each other out in different situations. For example, in a battle scenario, Red Robin might come up with a plan that Wonder Girl executes with her strength.
I really like the fanfiction titled 'Robin's New Beginnings'. It takes an interesting approach by exploring what would happen if Robin had to start over in a new city. The author does a wonderful job of keeping her essence intact while presenting new challenges and relationships for her.
Definitely their fellow superhero friends like Robin. Robin can bring his detective skills to the story, adding a different dimension to the plot. He could help Wonder Girl and Superboy solve a mystery that is related to the villain they are facing.
There might also be other characters from the Batman universe involved. For instance, Alfred, Batman's loyal butler. He could play a role in trying to mediate between Batman and Robin when things go wrong. Another character could be one of Batman's villains, like the Joker, who might take advantage of the situation between Batman and Robin.