If it's a crossover with a fantasy series, characters like Harry Potter could be included. Imagine Lemonade Mouth performing at Hogwarts and getting the students excited about a new kind of music. They could also help the Hogwarts students in some sort of magical musical quest, using their music to solve magical problems.
For a crossover with an adventure - based show, characters from 'Stranger Things' might work. The Lemonade Mouth gang could get caught up in the Upside Down mystery. Their music could have some sort of strange effect on the creatures there, either calming them or driving them away. It would be a really unique combination of the two worlds.
Characters from other music - centered shows like 'Glee' could be great. The members of Lemonade Mouth could interact with the Glee club members, have singing battles or collaborate on a big musical project. It would be interesting to see how their different styles of music and group dynamics play out.
John McClane from Die Hard would be a great addition. He has a similar tough - guy attitude and is good at handling high - pressure situations in urban environments. Another good character could be Ellen Ripley from Alien. Her experience with alien threats would contrast well with Rambo's combat skills. Also, Indiana Jones would be a perfect fit. His knowledge of archaeology and adventure - seeking nature combined with Rambo's combat expertise could lead to some exciting storylines.
Storm from the X - Men would be a great addition. She has control over the weather, which could create some really interesting scenarios when combined with Wolverine's combat skills. For example, she could create a lightning storm while Wolverine battles enemies in the rain, using the flashes of lightning to his advantage.
In a crossover with Hannah Montana, obviously Miley Stewart as Hannah Montana herself. She could be in Seattle for a secret concert and needs iCarly's help to promote it without revealing her identity. It would be fun to see Sam trying to keep Hannah's secret while also being her usual wild self around her.
In a crossover with the Lord of the Rings, Aragorn could be an interesting choice. He could bring his leadership skills and combat expertise to Los Santos. The GTA 5 characters might initially be skeptical of his noble ways, but they could learn from him. He could also help them fight against a new evil force that has emerged in the city, perhaps an ancient and powerful gang with dark magic - like abilities.
If it was a crossover with The Evil Within, Sebastian Castellanos would be a great character to include. His detective skills and his ability to handle the nightmarish creatures in his own game could be useful in the Outlast 2 world. He could team up with the Outlast 2 character to solve the mysteries behind the horror. Also, Pyramid Head from Silent Hill could be a terrifying addition. His presence alone would heighten the sense of dread in the Outlast 2 crossover story.
Definitely Goku. Their previous encounters in the Dragon Ball series make it a natural choice. Their power levels and different fighting styles would create great tension and action in the story.
Well, if you're doing a crossover with '101 Dalmatians', Cruella de Vil could be an interesting addition. She might see the Aristocats as a new target for her fur coats, creating a whole new conflict for the cats to face. And the Dalmatians could be allies of the Aristocats, helping them outwit Cruella.
Well, in the 'lemonade mouth novel', the main characters are Olivia, a shy singer who has a lot of potential but lacks confidence at first. Stella is a character full of energy and confidence, always ready to take on new challenges. Mo is creative and comes up with unique musical ideas. Charlie is a talented guitar player who helps shape the band's sound. And Wendell, who is also an essential part of the group. These characters interact, grow, and develop throughout the story, and their relationships with each other are key to the plot.
A time - travel crossover could also be interesting. Lemonade Mouth could be transported to a different era, like the 1960s. They would have to adapt their music to the styles of that time while also dealing with the social issues of the era. They could meet famous musicians from that time and collaborate on new music, which would then influence their own music when they return to their own time.
Goku from Dragon Ball is a must - include. He's the iconic Super Saiyan. And then maybe Thor from the Marvel Universe. Their different powers would make for an interesting dynamic. Also, Link from The Legend of Zelda could be a great addition, as he has his own set of unique abilities.