Another character that could be part of this fanfic is Kakashi. He could be Naruto's mentor in the prank, giving him advice on how to pull off the best prank on Android 17. Or, he could be the one who has to clean up the mess after Naruto's prank goes a bit too far.
In addition to Naruto and Android 17, there could be other characters involved too. For instance, Sasuke might make an appearance. He could either be in on Naruto's prank or be a bystander who gets caught up in the chaos. Also, some of Android 17's friends or allies from the Dragon Ball universe could potentially show up to see what's going on with him.
The plot might involve Naruto trying to prank Android 17 by challenging him to a fake competition. Naruto could pretend to be really bad at it at first, making Android 17 overconfident, and then suddenly show his real skills and win in a very unexpected way, leaving Android 17 shocked.
Well, in such a fanfic, Naruto might use his shadow clone jutsu for the prank. He could make clones that look like other Z - fighters and confuse Android 18. Maybe the clones would act all goofy around her, like trying to do the rasengan in a really clumsy way right in front of her.
Since it's a Naruto - related fanfic, Naruto himself is likely to be one of the main characters. He's always getting into all sorts of antics. And his friends like Sasuke, Sakura, or Shikamaru could also be involved, either as victims or co - conspirators in the banana butter prank.
Most likely Naruto will be one of the main characters since it's a Naruto fanfic. He's always up for some mischief and pranks.
The prank could also lead to an unexpected alliance. Maybe after the prank, Android 18 realizes that Naruto is just a fun - loving guy and they end up teaming up for some other adventure. They could combine their powers in unique ways. For example, Android 18's strength and Naruto's ninjutsu could be used to take on a powerful enemy. This would completely shift the direction of the fanfic's storyline.
Obviously Naruto would be one of the main characters since he is the one reporting the prank result. And the council members would also be main characters as they are the ones receiving the report.
Android 21 and Goku are the main characters. Android 21 with her android intelligence and power is a key figure. Goku, with his super Saiyan forms and his indomitable spirit, is equally important. Their personalities are so different - Goku is more straightforward and pure - hearted, while Android 21 has a more complex and sometimes morally ambiguous nature. These differences create great potential for conflict and growth within the fanfic.
In some fanfics, other characters might also play a role. For example, Krillin, who was once in a relationship with Android 18. His presence could add an interesting dynamic, like jealousy or a sense of competition, to the relationship between Goku and Android 18.
As I haven't read the 'Prank Night Novel', it's difficult to determine the main characters. However, they could be young people like teenagers or college students who are full of energy and enthusiasm for pranks. There might be a leader among the pranksters, and also some characters who are the targets of the pranks.
I'm not sure specifically as there could be many different takes on a 'naruto bananabutter prank fanfic'. It might involve Naruto characters playing some sort of prank using bananabutter in a fictional and humorous scenario created by fans.