Probably Draco Malfoy. He's always been a bit of an enigma. With the truth serum, we'd get to know if his mean - spirited actions were all his own or if he was pressured by his family. He might also reveal any hidden admiration he has for the trio or any remorse for his actions throughout the series.
Hermione would be very interesting. She's so logical and in control usually. But under the truth serum, she might reveal her more vulnerable side. Maybe she'd talk about how she really felt when she was excluded or bullied, or she could disclose her most far - fetched academic theories that she was too shy to share before.
I think Snape would be the most interesting. His complex past and his hidden loyalties could be fully exposed. We might finally understand all his real intentions and his true feelings towards Harry and his mother.
Well, in the 'Harry Potter under truth serum' fanfiction, it's likely that we'd see a lot of confessions. Harry could potentially reveal his innermost fears about Voldemort and his own destiny. Teachers like Snape might spill the beans on their past relationships or grudges. It would be a great opportunity for the author to explore the unspoken thoughts and emotions of the characters in a very direct way.
In such a fanfic, characters might reveal long - hidden secrets. For example, Harry could disclose his true feelings about some of his classmates or teachers that he had been suppressing. Maybe Ron would admit his insecurities about always being in Harry's shadow.
In some 'Harry Potter truth serum fanfiction', there could be a plot where the truth serum is used by students to play pranks on each other at Hogwarts. But these pranks could quickly turn serious as secrets are spilled that were meant to be kept hidden. This could lead to a rift between friends until they figure out a way to fix the situation.
One possible fanfiction could be where Hermione accidentally drinks the truth serum during a potions class experiment gone wrong. She starts revealing all sorts of secrets, like her true feelings about Ron and Harry, and also some hidden knowledge she has about Hogwarts' secrets. This could lead to a series of comical and yet somewhat tense situations as her friends try to keep her from saying too much.
Harry Potter himself is often a central character. The truth serum might be used on him, or he could be the one trying to find out the truth from others. Hermione Granger is also common, as her intelligence might be used to either create or counteract the effects of the truth serum.
An interesting idea could be that Hermione is given the truth serum during a wizarding trial. She has to testify, and the truth serum forces her to reveal some long - held secrets about the Ministry of Magic's inner workings that they were trying to keep hidden. This would create a huge stir in the wizarding world and put Hermione in a dangerous position as she uncovers corruption.
Harry Potter himself would be very interesting. Combining his wizarding skills with Kryptonian powers would make him an extremely powerful character. He could be the bridge between the two worlds and use his new powers to protect both the wizarding world and the world of Kryptonians on Earth.
Hermione would be really interesting. She could bring her intelligence and knowledge of magic to the iCarly crew. Imagine her helping Freddie with his tech projects using magic, or teaching Carly and Sam some basic spells. It would be a great contrast between the magical and Muggle worlds.
Harry and Elsa would be a very interesting pairing. Harry, with his experience in facing dark magic, could offer Elsa a new perspective on her powers which she has always seen as a curse. And Elsa, with her ice powers, could show Harry a different kind of magic that he's not used to in the wizarding world. Another interesting pairing would be Ron and Kristoff. They both have a simple - minded charm and could get into all sorts of funny situations together, like getting lost in the Forbidden Forest or on the mountains in Arendelle. Also, Hermione and Anna would be great. Hermione's intelligence and Anna's determination would make them a formidable duo as they try to solve problems in both their worlds.