For many adults today, Avatar: The Last Airbender is a beloved childhood favorite. It is a great show which properly balances its themes to be well suited for both adults and children audiences. While it is technically not considered an anime, it more than lives up to its name and actually rivals a lot of anime in its story, world-building, character development, power scaling, and ending.
Given the world setting of Avatar and the story that was told, there are certain anime characters who would do better in Avatar than they did in their own anime. They could completely tip the balance of power or actually be more useful than in their own anime.
10 Senku Would Have Helped Advance Science & Ended The War Sooner (Dr. Stone)
Thanks to his extensive knowledge of science and technology, Senku was able to win the stone wars against Tsukasa. If he could pull that off in a primitive world like Dr. Stone's, fans can only imagine the effect he'd have if he was in Avatar. Senku would have created weapons that will scare the Fire Nation into giving up the fight.
There might have even been a case where the Fire Nation would have to launch a mission to abduct or eliminate Senku because of his extensive knowledge. In that case, they'd have to hunt Senku almost as seriously as they would hunt for the Avatar. This would have been awesome storytelling if done properly.
9 Natsu Would Have Been An Incredible Firebender In Avatar (Fairy Tail)
Given that dragons did exist in Avatar, it makes sense that the Dragon Slayer from Fairy Tail would make a perfect fit in this world as well. In Avatar, there was even a time when firebenders hunted dragons to earn the title of Dragon. Because of the sheer strength of the dragons in Fairy Tail, Natsu barely lived up to his title.
In Avatar though, he'd have no problem slaying dragons especially since all the dragons in Avatar are fire dragons and Natsu is a Fire Dragon Slayer. However, with Natsu's character, it is expected that he will stand against the Fire Nation. This means that Natsu will waste no time in taking out the Fire Lord.
8 The Elric Brothers Are Sympathetic Young Boys Like Aang (Fullmetal Alchemist: Brotherhood)
Alphonse and his brother Edward sought to regain their original bodies after a failed transmutation left them dismembered. While on this mission, they discovered that their entire nation was in peril, so they sought to bring an end to the evil that was eating up their country. Most importantly, they vowed to do so without taking a single life.
This was bound to be difficult in a world where death was always right around the corner. In Avatar, seeing as it was a show meant for kids, the theme wasn't as bloody as Fullmetal Alchemist. Avatar is an ideal world for them to achieve their goals without spilling blood.
7 Benimaru Would Most Likely Lead A Resistance Against The Fire Nation (Fire Force)
In Fire Force, while Benimaru is a citizen of the Tokyo Empire, he prefers to see himself as the leader of Asakusa. Asakusa is a town of proto nationalists who prefer not to abide by the rules of the Tokyo Empire but instead look to Benimaru to guide them.
Benimaru believes in equality, therefore the Fire Nation's ideology of being superior to the other nations would most definitely not sit well with Benimaru. Seeing how strong Benimaru can be, it is easy to see him taking down the entire Fire Nation single-handedly.
6 Wendy's Kind Heartedness Will Blend Well With Aang (Fairy Tail)
Wendy always disagreed with the rowdiness of the Fairy Tail Guild even though she got used to it over time. Wendy does not like violence and only uses violence because she believes it to be the best way to protect her friends.
That said, Aang's gentle soul would make him the perfect match for Wendy and Wendy would have made a good rival to Katara for Aang's affection. To make things even better, Wendy uses Sky Dragon Slayer Magic, which a lot like airbending. Aang would have been extremely happy to have a fellow airbender travel alongside them.
5 Leopold Vermillion Would Make A Substitute Zuko (Black Clover)
Zuko was always trying to prove something. In the beginning, he was trying to prove to his father that he wasn't worthless. By the time he joined Team Avatar, he was also trying to redeem himself to his uncle by proving that his teachings weren't wasted. This is the kind of person Leopold is.
Leopold keeps trying to prove to his brother Fuegoleon that he isn't weak and that he'd surpass him one day. In Avatar, Leo would have been the type of guy who would fight hard for the Fire Lord. And just like Zuko, Leo would realize flaws in the Fire Nation and aim to correct them by restoring peace to the world alongside Aang and his friends.
4 Bakugo Would Be One Loudmouth Addition To Team Avatar (My Hero Academia)
Bakugo of My Hero Academia is well known for his bad temperament. He picks fights with anyone over the slightest things, so it's easy to see him getting into fights with the likes of Toph, who is all about getting on people's nerves.
Despite his bratty behavior, Bakugo is well-loved by his fellow 1-A classmates, and he loves them back in his own weird way. Bakugo acts the way he does because he hasn't had to deal with someone who is just as bratty as he is — at least not yet. He'd have the likes of Toph and Zuko to deal with if he ever went on one of his angry rants.
3 Mard Geer Would Have Allied With The Fire Lord (Fairy Tail)
Being the King of the Underworld, Mard Geer, was a rather arrogant individual. One of his goals was to wipe out magic and make Tartaros' curses the only power in the world. Mard Geer ultimately failed in Fairy Tail, as the people he had to fight were simply too strong.
In Avatar, on the other hand, there's no one even remotely strong enough to stop Mard Geer. With his power, he'd have been a lot more successful in Avatar than he was in Fairy Tail, as even Aang would have been totally helpless in a fight against him.
2 Asta's Physical Prowess Would Have Made Him A Phenomenal Non-Bender (Black Clover)
Born without magic into a world where magic is everything, Asta trained his body and mind to levels that defy all rhyme and reason. In the world of Avatar, there are benders and there are non-benders. Benders can use their powers to command different elements, but non-benders can't. Non-benders who turn out to be warriors have to train harder to keep up with benders.
Sokka, for example, was able to learn swordsmanship and go up against any firebender. Asta would have used his Anti-Magic Swords to great effect to do even better than Sokka would have ever done. Asta's sheer strength far exceeds Sokka's.
1 Daryun Is An Extremely Skilled Swordsman (The Heroic Legend Of Arslan)
Daryun is the most powerful swordsman of the Marzban, and he is respected and feared throughout the land. He'd have made a great Army General in any division of the Four Nations. Daryun will stand out in a world of people with supernatural abilities simply because he's such a great swordsman.
Besides the Air Nomads, the other three nations all had warrior groups that either fought with the elements or with man-made weapons. Given his skill with the sword, bow, and spear, Daryun will be able to contend with any fighter on any battlefield he'd find himself.
NEXT: 10 Anime Characters That Would Do Better In Naruto