Definitely Sam and Tucker. They are Danny's closest friends and are always getting into adventures with him. They could provide some comic relief during the time travel chaos. Valerie Gray could also be involved. She might initially think Danny and Ember are causing trouble in the different time periods and try to stop them. And don't forget about Frostbite from the Far Frozen. He could have some knowledge about time travel in the ghost world and offer his help to Danny and Ember to make sure they don't do any irreversible damage to the timelines.
One character that could be involved is Jazz, Danny's sister. She might be the one to notice the time travel anomaly first and try to help Danny and Ember get back to their own time. Skulker is another possibility. He could be hunting Danny through time, seeing it as a great opportunity to finally catch his elusive prey. And then there's Clockwork, the master of time in the Danny Phantom universe. He could either be guiding Danny and Ember on their time - traveling journey or trying to stop them if they are messing with the timelines in a bad way.
Well, Danny's friends like Sam and Tucker could be involved. Maybe they accidentally get pulled into the time travel adventure too. Danny's parents, Jack and Maddie, could also be part of it. They might be chasing after Danny and Ember through time, thinking they are up to no good. Another character could be Vlad Masters. He could sense the time travel disruption and try to use it to his advantage, perhaps by traveling to a time when he could gain more power or change the past to make Danny's life more difficult.
I think Jazz could be included. She could be the voice of reason for Danny, helping him understand his feelings for Ember. The Box Ghost could also be in the story for some comedic relief. And Technus. He might try to use the relationship between Danny and Ember for his own evil technological plans, which would add an interesting twist to the fanfiction.
In fanfiction, the idea of Danny and Ember having a daughter can lead to really interesting storylines. Maybe their daughter could inherit Danny's ghost powers and Ember's musical abilities, creating a unique character. She could struggle with being half - ghost, half - something else due to Ember's unique nature, and have to find her place in both the human and ghost worlds.
There could be a fanfic where Danny and Ember accidentally swap powers. This leads to a series of comical and also dangerous situations. Danny has to figure out how to control Ember's power of influencing people through music while Ember struggles with Danny's more combat - oriented powers. It could be a story full of self - discovery for both of them.
Well, clearly Danny Phantom is a key character. He's constantly in the middle of things, trying to keep the balance between the human world and the Ghost Zone. Ember, on the other hand, with her fiery red hair and her musical powers, is another main character. In this fanfiction, their interactions are what drive the story forward, whether it's them fighting against each other at first or eventually working together.
Obviously, Danny Phantom and Ember would be the main characters. Danny is the half - ghost protagonist who is being raised by Ember. Ember, a ghost with music - related powers, would play the role of his caretaker or mentor in this fanfiction.
One common theme is the power struggle. Ember has her own set of powers and often tries to overpower Danny, either for her own gain or just for the fun of it. So there's a constant back - and - forth in terms of who's in control.
Well, at first, their relationship was more of an enemy - turned - something - else situation. Once married, they would be more protective of each other. Danny, who was always the hero, would now have Ember as his equal partner. Ember, who was once a bit of a troublemaker, would become more of a support for Danny. Their relationship would also be more public, and they would have to face the opinions of others, which would change how they interact with the outside world and with each other.
She could face a lot of challenges. For example, she might be shunned by some in the ghost world because of her half - human heritage from Danny. Or she could struggle to fit in with humans because of her ghostly powers. It would be a complex situation for her to navigate.
One interesting fanfic concept is that Danny and Ember are forced to work together to save the Ghost Zone from a powerful, ancient evil. They must combine their powers and knowledge. Danny's scientific knowledge about the Ghost Zone and his powers, along with Ember's knowledge of the more mysterious and musical aspects of the Ghost Zone, could lead to a great adventure and a deepening of their relationship.
One great fanfiction could be about Skulker and Ember teaming up against Danny Phantom. Maybe they form an uneasy alliance because they both realize Danny is getting too powerful and they need to stop him before he completely thwarts their plans in the Ghost Zone.