In Danny Phantom, identity is a central theme. Danny's dual nature as a human and a ghost makes him question who he really is and where he belongs. Friendship is also a major theme. His friends Tucker and Sam are always by his side, through the good times and the bad. Additionally, the theme of power and responsibility is present. Danny has to learn how to control his ghost powers and use them to protect the people and the town from the various threats that come from the Ghost Zone.
One main theme is family. Since Dani and Danny have a sort of family connection, a lot of fanfics explore how they support and care for each other like family members. For example, in many stories, Danny takes on the role of an older brother figure for Dani.
Love and friendship are common themes. Their relationship, whether it's a budding romance or a deep platonic bond, is often explored.
One common theme is the struggle between good and evil within Danny. It often shows how his normal self battles his evil side. Another theme is the impact on his relationships. His friends and family have to deal with this new, dangerous Danny.
One common theme is family. Since they are siblings, a lot of fanfics explore their family bond, like how they rely on each other and protect one another. Another theme is secrecy. Danny has to keep his ghost identity a secret, and Jazz often gets involved in that secrecy, either by helping him keep it or by accidentally finding out. Growth is also a theme. As the story progresses, both Danny and Jazz grow as characters, both in their personal lives and in dealing with the supernatural elements around them.
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.
One common theme is the exploration of their relationship. Whether it's a friendship or a budding romance, it's often at the center of the story. For example, in many fanfictions, Danny tries to protect Paulina from ghosts, which shows his care for her.
Obviously, the main character would be Danny Phantom himself, but in two different forms or versions. One would be the original Danny Phantom from the canon source, and the other would be a version created by the fanfiction. There might also be his friends like Sam and Tucker who could play important roles in helping the two Dannys understand each other and deal with any issues that arise from their meeting.
Some fanfictions might focus on Danny's role in the afterlife as a protector. He could be protecting other spirits or even trying to protect the living from a greater threat that exists in the ghost world. There could also be a theme of identity. Danny has to re - evaluate who he is now that he's dead. Is he still the same Danny, or has death changed him fundamentally? This exploration of self can make for really interesting stories.
A very frequent theme is the idea of redemption. Some fanfictions explore whether Vlad can be redeemed through his relationship with Danny. It's about whether Danny's goodness can rub off on Vlad or if Vlad is too far gone. There's also the theme of family, as Vlad sees Danny as a sort of surrogate son, and this adds a whole layer of complexity to their interactions. They can be like a dysfunctional family, with all the drama and emotional turmoil that comes with it.
Another theme is the idea of overcoming obstacles. In a lot of these fanfictions, there are things like Danny's ghost - hunting duties or Sam's family issues that they have to get past before they can have that kiss. It adds drama and depth to the story. For example, in some, Danny has to balance his secret identity with his growing feelings for Sam, and this creates tension until they finally share the kiss.