Perhaps a combination of Soap MacTavish from Call of Duty and Harry Potter himself. Soap is a highly skilled and experienced soldier, able to handle all kinds of combat situations. Harry has his unique magical abilities and his experience in fighting dark forces. Together, they could use their respective skills. Harry could use magic to deal with large groups of zombies at once, while Soap could use his combat skills to take out any remaining threats or handle any non - magical obstacles in their path.
Naruto would probably be one of the most powerful. His ability to create countless shadow clones would be really useful against the zombies. He could send clones in all directions to fight the zombies and keep himself safe. Also, his Rasengan could do a lot of damage to large groups of zombies at once.
It would probably be Harry Potter himself. He has the power of magic, which is extremely versatile. He could use spells like 'Expelliarmus' to disarm enemies or 'Accio' to call weapons to his side from a distance in the midst of a Call of Duty - style battle.
One interesting crossover could be the use of spells in the Call of Duty Zombies setting. For example, a wizard character from Harry Potter might use the 'Stupefy' spell to stun zombies instead of using a regular weapon. Another could be the Hogwarts castle being overrun by zombies, and the students and teachers having to fight them off using a combination of magic and the survival skills from Call of Duty. It could also be cool to see the Death Eaters team up with the zombies for some sort of dark alliance.
Sgt. Johnson from Call of Duty could be really interesting. Imagine him suddenly facing a Pikachu in the middle of a battle. His tough - guy military attitude would contrast greatly with the cute but powerful Pokemon. He might initially be dismissive but then learn to respect the Pokemon's abilities.
Definitely Harry Potter himself. He's the hero in the Harry Potter series, so he would be a central figure in the crossover. He could use his skills and courage to lead the way in the new, combined world. Ron and Hermione would also be important, as they are Harry's closest friends and would support him throughout the adventure.
Dempsey is often a popular character. His tough - guy attitude and combat skills make him a great fit in crossovers. Richtofen is also very popular. His mysterious and somewhat mad scientist vibe adds a lot of intrigue. And Tank Dempsey from the main Call of Duty series can bring a different dynamic when crossed over. He has a no - nonsense approach to fighting that can be interesting to explore in the Nazi Zombies setting.
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.
In Call of Duty Zombies lemon fanfiction, there could be original characters created by the fans. These characters might be survivors who have a special affinity for lemons. They could be the ones who discover the lemon - related secrets in the game world. Maybe a character named Lemon - Lou, who is always looking for ways to use lemons against the zombies and becomes quite popular among the other survivors.
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.