The world of anime is packed with thousands of wonderfully diverse and memorable characters of all kinds, from shonen action heroes to seinen antiheroes and heartfelt shojo leads, and everything in between. These characters can be described with archetypes such as "himbo" or tsundere, but they can also be described by the sixteen MBTI personality types.
Each MBTI personality type is described with a four-letter code. The INFJ code is the Advocate, an archetype fairly similar to the Consul and Defender types. Advocates are fairly reserved and quiet, but they are also deeply caring and selfless people who work hard for the sake of others. They see everything as a mission and will work tirelessly to achieve their own vision of justice and fairness for others.
10 Neji Hyuga Looks Out For His Family (Naruto)
At first, Neji Hyuga didn't seem like much of an Advocate since he was a bitter determinist who verbally abused his cousin Hinata and scorned Naruto's dream to become Hokage. Then Neji lost to Naruto during the Chunin Exam story arc, and he soon became a believer.
Ever since then, Neji has fought tirelessly for the sake of justice and his family. He won't stand for evil, corruption, or suffering in this world. He even gave his life to protect Hinata's own, a true Advocate move. He'll give his life for what is right.
9 Shigeo Kageyama Looks Out For Others (Mob Psycho 100)
Shigeo (also known as Mob) has a rather apathetic attitude much of the time in Mob Psycho 100, which makes it difficult to believe that he would make a serious effort for other people. Underneath that quiet exterior, though, Mob is a very caring big brother who will do anything for the sake of innocents who need his help.
Mob has a strong sense of right and wrong like a true INFJ and he won't let anyone tempt him with corrupt power or shortcuts in life. He has no particular mission in mind aside from using his psychic powers for good. Truthfully, he'd rather lose those powers than use them for evil.
8 Alphonse Elric Seeks Justice For Others (Fullmetal Alchemist: Brotherhood)
Alphonse Elric from Fullmetal Alchemist: Brotherhood can be described as a variety of MBTI types, such as the Defender and Mediator, but he can also be described accurately as an INFJ Advocate in many ways. Unlike his reckless tsundere brother Edward, Alphonse is a patient and gentle boy who always puts others first.
It's true that Edward also fights hard for others, but Alphonse is even more altruistic than him. Al also has an even stricter sense of right and wrong, as a true INFJ. Al will quickly become outraged if anyone else is ever harmed, abused, or deceived, and confront the guilty party at once.
7 Levy McGarden Wields Magic For Her Friends' Sake (Fairy Tail)
The wizards of the Fairy Tail guild all look out for one another and have a strong sense of unity and friendship, which is where they get their strength. Many of these wizards fit MBTI archetypes such as Protagonist, Defender, and Consul for that very reason, and the bookish Levy McGarden is certainly an Advocate.
As an INFJ, Levy is a bit reserved and soft-spoken, but she burns with the desire to protect her friends and fight for justice all across Fiore. She also forgave Gajeel Redfox for tormenting her when Gajeel showed true remorse for what he did and a true INFJ is certainly the type to forgive. They can't imagine holding grudges.
6 Itachi Uchiha Fought For True Justice (Naruto)
Neji isn't the only Naruto character who embodies protective MBTI types such as INFJ or INTP. The talented Itachi Uchiha always had a strong sense of justice and he would give anything, including his life, to enforce his idea of honor and justice — even if no one ever thanked him for it.
Itachi was strongly loyal to his native Leaf Village tribe. With a heavy heart, he followed his orders and slaughtered the traitorous Uchiha clan before it could make a move. However, the young Sasuke was innocent and ignorant of all this, and thus Itachi spared him. There's no need to kill a bystander like Sasuke.
5 Yuki Sohma Won't Let Akito Bully Him Anymore (Fruits Basket)
Yuki Sohma is the Rat of the Chinese Zodiac who's also a favored Zodiac member in the eyes of Akito, the family's abusive head. A lot is expected of Yuki in Fruits Basket, but he won't let himself just be a pawn to Akito and his mother. As an INFJ, he knows that is not true justice.
Yuki cares deeply for others, even if he kicks around his tsundere rival Kyo, and he can't stand the idea of Akito pushing around his fellow Zodiac members. Yuki joined forces with Kyo, Tohru Honda the heroine, and Momiji in rebellion, and they took the fight to Akito however they could. No INFJ will tolerate a bully.
4 Emilia Will Only Do What's Right For Others (Re:Zero)
Emilia is a half-elf who has a claim to the throne along with several other candidates in Re:Zero. She is also an associate of Roswaal Mathers and a friend of Puck, a cat-like spirit. Most of all, Emilia is Subaru Natsuki's lover and ally, being a love rival to Rem in a way.
Emilia has had her bratty moments, but she also has the noble and selfless heart of an INFJ Advocate as a smart and thoughtful girl who will say or do anything for the sake of people who need her. She has a solid sense of right and wrong. No one can sway her with bribes, intimidation, or temptation of any kind.
3 Momo Yaoyorozu's Heart Burns For Justice (My Hero Academia)
Many INFJ Advocates place a great deal of emphasis on the overall concept of justice, and most of them could cite "justice" as a primary motivation for what they do. Unlike law-oriented Consuls, Advocates tend to make up their own version of justice and righteousness, but they won't use this as an excuse to subvert society's rules on purpose.
Many characters in My Hero Academia have Advocate elements in them since the Advocate, Defender, and Protagonist MBTI types are all central to how superheroes operate. This includes Momo Yaoyorozu, a genius girl whose heart positively burns with the white-hot desire to become a pro and save lives as a noble hero.
2 Van Hohenheim Defends The Innocent However He Can (Fullmetal Alchemist: Brotherhood)
Unlike a law-oriented Consul or a charismatic Protagonist, the human Philosopher's Stone Van Hohenheim improvises his own rules on true justice and egalitarianism and the results are remarkable. Hohenheim is a wandering sage who uses arcane arts to foil Father's plans and protect humanity however he can in Fullmetal Alchemist: Brotherhood.
This meandering lifestyle alienated Hohenheim from his family, which is a sore topic for Edward, but at least it paid off. With his own methods, Hohenheim sought true justice and helped take down Father for the sake of all. He is also a kind and generous fellow, which makes him easy to like.
1 Armin Arlert Always Fights For What's Right (Attack On Titan)
Attack on Titan's Armin Arlert is one of Eren's best friends from childhood who's always put an emphasis on doing the right thing and acting selflessly for the sake of others, even if he must put himself at risk. Armin may not be as recklessly brave as Eren but he shares Eren's fierce desire to protect Paradis Island and shield innocent lives from harm.
Armin is an INFJ because he has a flexible mindset that allows him to work alongside whomever he must so he can protect the people he loves and fight for true justice as he sees it. Armin is even willing to turn on his villainous friend Eren if it means doing the right thing.