It could be Harry himself. As the CEO, he would have the power to make major decisions and shape the company's direction.
Dumbledore, even in a fanfiction where Harry is a CEO, could still be a very influential figure. His wisdom and experience could be a guiding force for Harry. He might offer advice from the sidelines, using his deep understanding of human nature and magic to help Harry navigate the complex corporate world.
Hermione would also be very influential. Her intelligence and quick thinking would make her an invaluable asset in any business situation. She could come up with brilliant strategies and solutions that others might not think of.
I think McGonagall would be very influential. She is strict but fair. She could teach Harry about responsibility and the importance of rules in the wizarding world. Also, her transfiguration skills are top - notch and she could pass on great knowledge in that area to Harry.
Hermione Granger is very influential. She is extremely intelligent and well - read. She often helps Harry and Ron with her vast knowledge of magic, and her determination and loyalty contribute a great deal to their adventures and the fight against evil.
It could be Harry Potter himself. He has defeated Voldemort, one of the most powerful dark wizards. His ability to perform advanced magic like the Patronus charm and his experience in facing great evils would give him an edge. He could also learn from the Olympian magic and become even more powerful.
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.
Well, Raiden from Mortal Kombat might be a strong contender. He is a thunder god with incredible powers. In a crossover with Harry Potter, his ability to control lightning could give him an edge. He could use his powers to disrupt the magic of wizards or directly attack them. And his immortality would make him a difficult opponent to defeat, even against the most powerful wizards.
It's hard to say for sure, but Alucard has a strong case. His vampiric powers are extremely formidable, including his ability to regenerate, his superhuman strength, and his vast array of weaponry like the Casull and the Jackal. He also has centuries of combat experience. However, in the wizarding world, Dumbledore is an incredibly powerful wizard with a deep understanding of magic. He could potentially find ways to counter Alucard's powers, like using powerful spells of binding or banishment.
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.
Snape and Madarao would be an unexpected but fascinating pairing. Snape's brooding and complex personality could interact in an interesting way with Madarao's more straightforward and loyal nature. Snape could perhaps study the unique yokai magic associated with Madarao, and Madarao could be both amused and intrigued by Snape's potions and spells.
Some might think that a WWE superstar like The Undertaker could be the most powerful. His in - ring presence is so intimidating. If he were to somehow gain some magic abilities, like being able to control the dark elements similar to some dark wizards in Harry Potter, he could be truly unstoppable. He already has a reputation for being 'undead' in the WWE, which could be enhanced with some dark magic elements from the Harry Potter world.