Who are the best characters to include in Vilgax x Ben fanfiction aside from Vilgax and Ben?

Well, a plot could be that Vilgax gets amnesia and Ben has to decide whether to take advantage of this or help him. This could lead to a whole new dynamic between them as Ben tries to figure out what to do. Also, a fanfiction could explore what would happen if Vilgax became a mentor to Ben in a strange, alternate universe. They could train together and Vilgax could pass on some of his knowledge, but also try to manipulate Ben for his own ends. Or, perhaps a story where Vilgax and Ben are both stranded on a strange planet and have to work together to survive, all while dealing with their mutual distrust.

Power struggle is a common theme. Vilgax is always after more power and often clashes with Ben or other powerful beings in the fanfics. Another theme is revenge. Since Vilgax has been defeated by Ben many times, he often seeks revenge in these stories.

One popular 'Ben 10 Vilgax fanfic' could be 'Vilgax's Redemption'. It shows a different side of Vilgax where he tries to change his ways. Another one might be 'Vilgax vs. the New Aliens' which has some great action scenes with Vilgax facing off against newly introduced aliens in the Ben 10 universe.

Grandpa Max would be a great addition. His experience and wisdom could be a guiding force for Gwen and Lemon. Also, Kevin Levin could be included. His powers and his complex relationship with Ben could add an interesting dynamic to the story. Another good character could be Rook. His loyalty and combat skills could be useful in any adventures that Gwen and Lemon get into.

Sometimes Link from The Legend of Zelda can be an important character, since Ben Drowned is related to the Zelda games. Link might be a part of the backstory, like his actions in the game world might have somehow contributed to Ben's current state. So in the fanfiction, he could be a figure that haunts the memories or the digital space that Ben and the reader interact in.

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.

Evie is a great character to include. She's Mal's best friend and has her own unique style and skills. Her knowledge of fashion could be used in a story, like if they need to create disguises or outfits for a special event in the fanfiction. Also, Jay could be included. His athleticism and thieving skills can add an element of action and adventure. He could be the one who steals a crucial item or gets them out of a tight spot.

One character that might be popular is an older neighbor. This neighbor could have a lot of experience with raising children and offers wisdom and support to Ben and Riley. They might be the ones who help Ben and Riley resolve a big argument they have over the baby's upbringing. Another popular character could be a daycare provider. Since the baby needs care while Ben and Riley are working or dealing with other things, the daycare provider could be a source of both comic relief and important advice in the fanfiction.

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.

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.