In a Danny Phantom Phantom Planet fanfiction, the ghosts can be very interesting to focus on. For example, Ember McClain. She has a unique power and her own backstory. You could write a story about her trying to regain her power or form an alliance with Danny. And then there's Skulker, the hunter. A fanfiction could explore his motives and how he might change his view of Danny after the events of Phantom Planet.
Sam and Tucker are really interesting characters to focus on. Sam's gothic personality and her strong beliefs can lead to some great storylines. Tucker's tech - savvy nature can be used in many ways, like developing new gadgets or helping Danny figure out some tech - related mysteries. And Jazz, Danny's sister, with her psychology knowledge could play a crucial role in understanding Danny's situation better in a fanfiction.
A great fanfiction idea could be a time - travel story within the Danny Phantom Phantom Planet universe. Danny somehow gets sent back in time to before he became a half - ghost. He has to figure out how to get back to his own time while also dealing with the knowledge he has of the future. This could lead to some really interesting interactions with his past self, his family, and friends. And he might accidentally change things in the past that could have a huge impact on the future of the Phantom Planet.
Obviously, Danny and Dan themselves are very popular. Danny as the main hero and Dan as his dark and complex counterpart are central to many stories. Jazz, Danny's sister, is also popular as she can provide a different perspective and often gets involved in Danny's ghost - fighting adventures in fanfiction.
Obviously Danny himself is a must - include. But also Sam and Tucker are great characters to have. They've been with Danny through everything and can add some great human - side to the fanfiction. Valerie could also be included. She has her own complex relationship with Danny and the whole ghost - fighting thing. And of course, there are the ghosts like Vlad. His rivalry with Danny can create a lot of interesting storylines.
Danny himself is an obvious choice. His journey through different realities can bring out so many different aspects of his character. He can face new challenges that test his limits as a half - ghost. Sam and Tucker are also great characters to focus on. They can provide support to Danny in different ways in each reality. Jazz could also be interesting as she might have different relationships with Danny in different realities. And then there are the ghosts like Vlad who could have different motives and actions in alternate realities.
Sam is also quite popular. Her goth - like personality and her strong - willed nature make her an interesting character. In fanfiction, she can be portrayed in different ways, like being even more involved in Danny's ghost - fighting activities.
In addition to the ghosts, there might be some human characters that are important in the 'phantom city danny phantom fanfiction'. They could be Danny's friends or family members who get involved in the events of the Phantom City. Their reactions to the supernatural world and their interactions with Danny and the ghosts would add an interesting dynamic to the story.
I think Danny Phantom and Spider - Man would make an interesting pair. They are both young heroes with a sense of humor. Danny could teach Spider - Man about the Ghost Zone, and Spider - Man could show Danny some of his cool web - slinging moves. They could also bond over the fact that they have to keep their identities a secret while still trying to do good in their respective worlds.
Danny himself is often a very popular character. After all, he's the main character of the original series, so in fanfiction, his adventures are usually central. Sam and Tucker are also quite popular as they are Danny's closest friends. Their relationships with Danny and how they support him in different situations are often explored in fanfiction.
Sam and Tucker are also quite popular. In the multiverse fanfiction, they can have different roles. Maybe in one story, Sam has some hidden ghost powers of her own and becomes a key player in a multiverse adventure. Tucker could be a tech - genius in one universe and a powerful magician in another, adding new dimensions to their characters.
Wolverine is also a very popular character in these fanfictions. His tough - guy attitude and his claws and healing factor are really cool elements. Fans love to see how he reacts to Danny's world of ghosts and the different situations they get into together.