In a crossover with 'Moana', Moana could be a great character. Her strong - willed and adventurous spirit could inspire Eep even more. And Maui's magical abilities and larger - than - life personality would create some interesting dynamics with the Croods.
If it's a crossover with 'Ice Age', Manny the mammoth would be a great addition. His calm and gentle nature could contrast with Grug's over - protective and sometimes gruff attitude. Sid the sloth could also bring some comical relief with his goofy antics.
Hermione Granger from 'Harry Potter' could be an interesting addition. She could use her magic knowledge to study the mummy. Maybe she could find a spell to control or at least understand the mummy better. It would be a really unique combination of magic and ancient Egyptian mystery.
Professor Oak could also be an interesting addition. As a Pokémon expert, he might be fascinated by Mewtwo and try to study it. This could create a conflict as Mewtwo is not one to be easily studied. It could also lead to a deeper understanding of Mewtwo's origin and abilities.
Batman would be a great character to include. His no - kill rule contrasts with Deadshot's assassin nature. Their interactions would be full of tension and moral debates. Harley Quinn could also be included. Her chaotic personality could add an element of unpredictability to the story. She might team up with Deadshot for a mission or be a distraction during one of his hits.
In a 'Shadow of War Crossover Fanfiction' with 'Star Wars', Luke Skywalker would be a good character to include. His journey from a farm boy to a Jedi Knight could be contrasted with Talion's path. And Han Solo's roguish charm could add some humor to the story. If it was a crossover with 'Harry Potter', Hermione would be great. Her intelligence and knowledge of magic could interact in interesting ways with Talion's skills. Dumbledore could also be included for his wisdom and power.
In a crossover with a detective story, a smart detective character would fit well. He or she could initially be suspicious of Radio Rebel's anonymous radio persona but then come to realize that she can be a valuable asset in solving a big mystery. They could work together to uncover secrets in the city, with Radio Rebel using her radio show to gather tips from the public.
If it's a crossover with 'Frozen', Elsa and Anna would be great characters. Ariel could meet them when a magical iceberg drifts into her underwater world. Elsa's ice powers and Ariel's water powers could interact in interesting ways.
When thinking about a Conan the Barbarian crossover fanfiction, characters from 'Assassin's Creed' could be considered. Ezio Auditore, for example, is a master assassin with stealth and combat skills. His more refined and stealthy approach would be different from Conan's brute - force style. In a crossover with 'Final Fantasy' series, Cloud Strife could be included. Cloud's use of the Buster Sword and his own complex backstory could interact in an interesting way with Conan's straightforward warrior nature. And in a crossover with 'The Legend of Zelda', Link would be a great addition. Link's use of various items and his quest - driven nature would pair well with Conan's adventures.
Vegeta would be a great character to include. His rivalry with Goku could add some interesting dynamics in the crossover. Also, Piccolo, with his strategic mind and powerful attacks, could be useful in facing the new challenges. And if it's a crossover into another anime universe, someone like Naruto could be included. Naruto's never - give - up attitude and his own set of powerful jutsu could create some amazing team - up moments with Goku.
In a crossover with Ghost in the Shell, Major Kusanagi would be an excellent addition. Her cybernetic enhancements and skills as a counter - terrorist would contrast well with Judge Dredd's more straightforward law enforcement style. They could work together to solve a case that involves both the high - tech world of Ghost in the Shell and the chaotic Mega - City One.
How about Pikachu from 'Pokémon'? Pikachu is cute and friendly. When it meets Naughty Bear, it might be confused by Naughty Bear's actions. Pikachu could use its electric powers to try and stop Naughty Bear when he's being too naughty, like when he's trying to steal Pokémon food or toys from other Pokémon trainers.