Another character that could be included is Lara Croft from 'Tomb Raider'. She's an expert in exploring ancient tombs and dealing with ancient curses. She could join forces with the characters from 'The Mummy 2017' to stop the mummy. Her athleticism and knowledge of ancient artifacts could be very useful in the fight against the mummy.
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.
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.
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.
Some good characters to include could be Buzz Lightyear. Since he's from a space - related story, he could team up with Stitch in some intergalactic adventure. Another character could be Ariel from The Little Mermaid. Imagine Lilo and Stitch ending up underwater and meeting Ariel. She could help them navigate the underwater world. And of course, Peter Pan would be a great addition. He could fly around with Stitch and Lilo and take them to Neverland for an adventure full of magic and fun.
Simba from 'The Lion King' would also fit well. His experience of losing his kingdom and then reclaiming it is similar to Moses' story in some ways. They could bond over their shared experiences of exile and the journey to regain their rightful place.
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.
Goku from Dragon Ball would be an obvious choice. Since Beerus is from the Dragon Ball universe already, their interactions are always full of energy and interesting power dynamics. They could team up against a new, powerful enemy that threatens both of their worlds in the crossover.
Definitely a magical gnome. Gnomes are often associated with magic and mischief, and they could interact with the little vampire in fun ways. And an angel character would be great too. The angel could represent the good and the vampire could be on the more 'grey' side of morality, leading to some great character development moments.