Spiderman would be a great character to include. His acrobatic skills and sense of responsibility could make for an exciting team - up with Ben. They could swing through the city together while Ben uses his alien forms to fight off villains. Also, Goku from Dragon Ball Z. His super - strength and energy - based attacks could be a cool contrast to Ben's alien powers. They could have a friendly sparring match that turns into a fight against a common enemy.
The Doctor from Doctor Who would be an amazing addition. His knowledge of the universe and time - traveling abilities could create really interesting storylines when combined with Ben's alien - transforming skills. Another good character could be Naruto. His ninja skills and determination would pair well with Ben's quick - thinking in battle situations. They could learn from each other's fighting styles.
For 'ben 10 x overs fanfiction', a great concept would be a crossover with the DC Universe. Picture Ben 10 meeting Superman. Ben could be in awe of Superman's powers, and they could team up to stop Lex Luthor who has somehow gotten his hands on some of Ben's Omnitrix technology. Or a crossover with the Justice League where Ben's unique abilities add an interesting dynamic to the team. He could transform into different aliens to complement the skills of each League member.
Definitely Naruto. He's the main character of the original series, so it's natural that he's prominent in crossovers. Kakashi is also quite popular. His cool demeanor and wide range of abilities, like his Sharingan, can be very interesting in other universes. Hinata is popular too, especially in crossovers where there are elements of romance, as her love for Naruto is well - known.
Gwen could be a great addition. She could be the voice of reason when Ben and Vilgax are at odds or she could have her own powers play a role in the story. Grandpa Max is also a good choice. His wisdom and experience could add depth to the fanfiction, especially when dealing with Vilgax. Another character could be Kevin. His ability to absorb energy could create some interesting interactions with Vilgax and also provide a different kind of friendship or rivalry dynamic with Ben.
Kevin Levin can be a really cool addition. His ability to absorb materials and transform into different forms makes for some exciting action scenes. Also, his complex backstory can create interesting storylines when combined with the reader's character, like if the reader helps him come to terms with his past or something similar.
Owen is also a fan favorite. His humorous and friendly personality brings a light - hearted touch to the often - tense situations in Total Drama. In the 'X Overs' fanfiction, he can interact with new characters and get into all sorts of wacky adventures that fans love to read about.
Max Tennyson is a great character to include. He has a lot of wisdom and experience which can add depth to the story. He can be the one to give Ben and Gwen advice during their adventures. Another good character is Kevin Levin. His complex relationship with Ben and Gwen can create interesting plotlines, especially if there are conflicts or reconciliations involved.
Gwen is an obvious choice. She can bring her magic skills and her relationship with Ben to the story. Also, Grandpa Max, who has a lot of knowledge and experience that can be useful in the fanfic. Another good character could be Kevin, with his ability to absorb materials and his complex relationship with Ben.
Ben Tennyson is obviously a must - as he is the main character. Gwen is also very popular as she has her own powers and often helps Ben. Kevin Levin is another great choice. His ability to absorb materials and his complex relationship with Ben add a lot of depth to the story. Vilgax is a classic villain that makes any fanfiction more exciting. He's powerful and has a long - standing rivalry with Ben.
In Ben 10 crossover fanfiction, many writers like to include Azmuth. As the creator of the Omnitrix, he has a wealth of knowledge and power. His presence can add a layer of depth to the story, especially when it comes to explaining the science behind the Omnitrix or helping Ben understand new alien forms. Also, Charmcaster is often included. Her magic abilities can create some interesting dynamics when combined with Ben's alien powers in a crossover.
Evie would be a great addition. She's Mal's best friend and can provide support and advice to Mal in her relationship with Ben. Also, Jay and Carlos from the Isle of the Lost gang are good choices. They can add some action and humor to the story.