Lucius Malfoy: ISTJ

Guest Post by Andrew, ENTJ

Harry Potter, J. K. Rowling

Dominant Introverted Sensing (Si): Lucius regards heritage as being all-important. He thinks of wizards and witches from old magical families as the most valuable people, while disdaining “mudbloods,” or witches and wizards from muggle families. Moreover, he maintains that some wizarding families (like his own) are better than others (like the financially strapped Weasleys). Lucius has nothing but a dismissive contempt toward the lowest of the low in wizarding society, such as house elves, which has cost him dearly on occasion; in particular, his careless attitude toward his own elf, Dobby, has blinded him to his servant’s frequent attempts to aid Harry and to pass forbidden information to his political enemies. However, in contrast to his lackadaisical attitude toward the underlings of his world, Lucius has a keen sense of the rules of the game in any situation, which has allowed him to get away with a great deal, all while becoming well-connected at the Ministry of Magic.

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Miss Havisham: ISTJ

Guest post by Key Lime Pi, INFP

Great Expectations


Si: Miss Havisham is fixated on the past, so much so that she keeps her entire house exactly as it was on the day of her canceled wedding, even as it disintegrates around her. She approaches her entire life based on her experience with tragedy in love, trusting a select few people (Estella, Mr. Jaggers, Pip) and raising Estella for the sole purpose of breaking the hearts of men. However, she still allows a few visitors whom she knows from her past, like Miss Camilla, even if she doesn’t like them. Continue reading

Mace Windu: ISTJ

Guest post by Andrew, ENTJ

Star Wars

Mace Windu ISTJ | Star Wars #MBTI #ISTJ

Introverted Sensing (Si): Mace believes that keeping to established precedents is the best thing for the Jedi Order. In his mind, nobody is exempt from the rules for who may and who may not be trained as a Jedi, not even Anakin Skywalker, allegedly the “Chosen One” who is destined to bring balance to the Force. Mace needs to have all the information before he reaches any conclusion, from the alleged return of the Sith to the identity of the mysterious Darth Sidious, and he devotes a great deal of time, energy, and resources toward gathering information. Mace is most comfortable working within the system of the Jedi Order and the Republic, and he is thus blinded to the eventual use of this system to destroy the Jedi.

Mace Windu ISTJ | Star Wars #MBTI #ISTJ

Extroverted Thinking (Te): Mace prefers acting with others to acting alone, and he generally feels a need to take charge when something needs to be done. He can organize people toward specific goals, but is often oblivious to how anyone will react emotionally to his decisions, as the only matters that he takes into account when assigning duties are competence and usefulness. Mace looks for empirical evidence to inform his decisions; he runs a series of tests on Anakin to gauge his aptitude for using the Force, and he encourages a confrontation between Qui-Gon and Darth Maul to ascertain whether Darth Maul is, in fact, a Sith Lord. Mace keeps his communication direct, making his point of view clear from the get-go.

Mace Windu ISTJ | Star Wars #MBTI #ISTJ

Introverted Feeling (Fi): When push comes to shove, Mace will sometimes abandon the niceties of the Jedi Code and try doing things his own way. He is ready and willing to kill Palpatine after the latter is disarmed and apparently helpless. Mace generally represses his emotions, and doesn’t factor them into his decision-making process. Additionally, he doesn’t consider that others are more driven by their feelings than he is by his own; he even shuts down Obi-Wan when he brings up Anakin’s love for Padme as a stumbling block for his mission as a Jedi.

Mace Windu ISTJ | Star Wars #MBTI #ISTJ

Extroverted Intuition (Ne): Mace has devised a new style for fighting with a lightsaber; it is all his own and based mainly on unpredictability. He can have trouble viewing the big picture (his view of the Sith menace is hazy at best), and when he gets a glimpse behind the scenes, he will take actions that are ill-judged and impulsive (he moves against Palpatine immediately upon hearing that the Supreme Chancellor is Darth Sidious).

Paul – Pokémon: ISTJ

Guest post by Andrew, ENTJ

Pokémon Anime Franchise

Paul ISTJ | Pokemon #MBTI #ISTJ

Introverted Sensing (Si): Memories of Paul’s past dominate his present.  His overwhelming and overbearing emphasis on having a team of powerful Pokemon comes from a crushing defeat of his brother, Reggie, that he personally witnessed.  Paul remembers the details of how and when he captured each of his Pokemon, and recounts different circumstances when they are relevant.  In deciding whether to keep a newly caught Pokemon on his team, Paul goes by two criteria: what moves the Pokemon knows and past battling results, and he makes sure to find out everything he can about a newly caught Pokemon before deciding to train it.  Although he will not hesitate to release any Pokemon who fails to make the cut in either category, he makes an exception for his Chimchar, who has already demonstrated unusual power; he puts in a great effort to unlock this power for a long time before finally giving up.  Although Paul has a low opinion of Reggie as a trainer, he uses Reggie’s help to train his own Pokemon.  Paul is very hierarchically aware, and his respect is mostly reserved for those who are above him on the social ladder (e.g. his elders, battle referees, and trainers who have bested him). Continue reading

Rey – Star Wars: ISTJ

Guest Post by Jessica Prescott, INFJ

Star Wars:  The Force Awakens

Rey ISTJ | Star Wars #MBTI #ISTJ

Introverted Sensing (Si):  The single most important influence on Rey’s thought processes and decision-making is her attachment to the past.  She endures a comfortless existence on Jakku, sustained solely by the hope that the family who abandoned her there fifteen years earlier will one day return to find her.  So tenaciously does she cling to this belief, in fact, that even after narrowly escaping from Jakku with her life, Rey’s first reaction is to insist on returning there as soon as possible: “I’ve been gone too long already.”  Rey is also an avid collector of legends and lore about the old days of the Jedi, and she clearly respects Han Solo for the part he played in those stories (a respect which Se-user Finn does not share).  She has an excellent memory for detail and can give Han an exact history of everything that has happened to the Millennium Falcon since it’s been on Jakku (including all the repairs/alterations it has undergone). Continue reading

Eustace Clarence Scrubb: ISTJ

Guest Post by E. J., INTJ

The Chronicles of Narnia, C.S. Lewis

Eustace Scrubb ISTJ | The Chronicles of Narnia #MBTI #ISTJ

Dominant Si: Eustace initially behaves in ways that do not reflect the customs of English society as a whole because he is used to the behavior of his parents, who have tried to raise him in a way that they consider modern and progressive. In reality, they have accidentally stunted Eustace’s imagination and emotional life, making him unable to enjoy socializing with normal children. When Eustace is transported to Narnia with his cousins Edmund and Lucy, at first he cannot adjust to the fact that he is in a place where his parents’ preferred way of life might hamper his own survival. He insists that a British Consulate must be located somewhere in the area and believes that things on the Dawn Treader are not being done properly. Fortunately, Eustace eventually realizes that the customs of Narnian society make more sense than those taught to him by his parents. He changes his behavior and becomes a much more pleasant person in both Narnia and England. Continue reading

William Murdoch: ISTJ

Guest Post by Fanta, INTJ

Murdoch Mysteries (TV series)

William Murdock ISTJ | Murdock Mysteries #MBTI #ISTJ

Si: Detective William Murdoch is a very serious, by-the-book, conventional man who is deeply attached to his Catholic religious upbringing. He has a strong sense of duty guiding him when he has to make difficult and personal choices: he chooses justice over stopping the marriage of the woman he loves. He upholds the law to a tee, always tells the truth (even when it leads to  freeing a guilty criminal), and minutely follows criminal and scientific procedures. From very early on, Murdoch has developed a keen interest in scientific knowledge, spending so much personal time absorbing all kinds of information through this hobby that he became an expert without consciously wanting to. Continue reading

Arthur – Inception: ISTJ

Guest Post by E. J., INTJ


Arthur ISTJ | Inception #MBTI #ISTJ

Dominant Si: Arthur prefers approaches that he considers tried-and-true. He has difficulty accepting that inception is possible because it is outside the realm of his experience–which, fortunately for Cobb, is vast. His traditional approach is one of the reasons that Eames (who calls him “that old stick-in-the-mud”) loves teasing him at every opportunity. Arthur instinctively distrusts most out-of-the-box ideas, despite his highly unusual profession, but his eye for detail helps make him among the best extraction experts in the world of corporate espionage. It is also his attention to detail that leads to some of the friction between Arthur and Eames: Arthur is frustrated by Eames’s tendency to suggest unusual strategies without fleshing out the details. Continue reading

Abraham Woodhull: ISTJ

Turn: Washington’s Spies

Abraham Woodhull ISTJ | Turn: Washington's Spies #MBTI #ISTJ

Introverted Sensing (Si): Abraham has a strong sense of duty to both the law and his family (although he’s definitely selective about which duties he chooses to see). He broke off his engagement with Anna out of “duty” to his family. He’s very aware of the law tries his Continue reading

Éomer: ISTJ

Guest Post by E. J., INTJ

Lord of the Rings, J.R.R. Tolkien

Éomer ISTJ | Lord of the Rings #MBTI #ISTJ

Dominant Si: Éomer was raised in Rohan and firmly believes in the way of life that was instilled in him as a young boy. Although Wormtongue’s influence was weakening his uncle, King Theoden, Éomer’s close friendship with his older cousin Theodred, as well as the relationships built through his military training, ensure that Éomer is thoroughly formed by the culture of Rohan–in particular, its military and leadership traditions. The adult Éomer becomes angry when he sees how Wormtongue is subverting Rohan’s traditional values, but his loyalty to Theoden’s kingship never wavers. Continue reading

Theoden: ISTJ

Guest post by E. J, INTJ

Lord of the Rings, J.R.R. Tolkien


Dominant Si: Theoden’s goal in life is to be a great king in the tradition of his famous ancestors. This desire drives both his good and bad decisions. Wormtongue never corrupts Theoden: rather, he convinces Theoden that Wormtongue’s advice will best safeguard Rohan’s legacy. When Gandalf comes and helps Theoden to realize the depth of Wormtongue’s treachery, some of Theoden’s first concerns focus on the protection of his family line and the royal hall his ancestors built. Theoden faithfully acts the part of a traditional king of Rohan as he battles Saruman and, later, the forces of Sauron. Dying on the battlefield, he expresses his satisfaction that he will not need to be ashamed in his ancestors’ company.  Continue reading

Susan Pevensie: ISTJ

Guest post by E.J., INTJ

The Chronicles of Narnia, C.S. Lewis

Peter Pevensie ISTJ | The Chronicles of Narnia #MBTI #ISTJ

Dominant Si: Susan generally tries to rely on past experience to solve the problems that she and her siblings face. When the Pevensies are sent away from London to the Professor’s house, Susan tries to do what their mother would have done in taking care of her siblings. She reminds Edmund to go to bed, breaks up arguments, and ensures that her siblings wear coats when they leave the wardrobe for the snowy Narnian world. Susan cares about meeting social expectations and being polite. When she realizes that Mr. Beaver wants to be complimented on his dam, she promptly does so. Susan’s concern about being socially acceptable means that she does not accompany the Narnian armies during her reign. Corin describes her as being “more like an ordinary grown-up lady” than her INFP sister, Lucy, who regularly rides to the wars alongside their brothers. Ultimately, Susan’s concerns about meeting social expectations override her memories of Narnia. She ends up caring more about society perceiving her as an attractive, well-adjusted young woman than she does about living in this world with a Narnian perspective, since she knows that she cannot physically return to Narnia. As a result, she is not party to her siblings’ plan to save Narnia, and she does not arrive in the new Narnia with them. (Whether their deaths make her relive her memories of Narnia and bring about a change in her attitude is a question that the books do not answer.) Continue reading

Why Tolkien was an ISTJ

The first thing I’d like to make clear is that Tolkien does not write like an INFP. Though he was known for not finishing projects he started on and for working in “idea bursts,” his writing does not express an Ne-style creativity. If you want a better example of very INFP writing, look to Neil Gaiman as your (exaggerated) example.

Having studied medieval literature at the university level, it is clear to me that Tolkien did not come up with most of his “ideas” himself. Almost all of the cultures and concepts found in Lord of the Rings, The Hobbit, and the Silmarilion are literally borrowed aspects of the medieval era literature he was obsessed with. If you need evidence of this, here you go:


  • Wergild: the individual naming of weapons and treasure found in Anglo Saxon culture, wherein each treasure was unique and one of a kind. Where do you think Sting, the Arkenstone and Mithril came from?

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J.R.R Tolkien: ISTJ

Guest post by E.J., INTJ

J.R.R. Tolkien ISTJ | The Book Addict's Guide to MBTI #ISTJ

Introverted Sensing (Si): Tolkien’s mother died when he was eight years old, and his memory of her motivated him throughout his adult life. Since her family had abandoned her after her conversion to Catholicism, and her health had subsequently deteriorated, Tolkien considered her a martyr. Her memory was part of the reason why Tolkien became such a staunch Catholic. Continue reading

Sheldon Cooper: ISTJ

Guest post by, “you only live once but living once means living many times ,as a series of similar but technically different people who know each other in one direction but who can help each other but only in the other direction,” ENTP

The Big Bang Theory

Sheldon Cooper ISTJ | The Big Bang Theory #MBTI #ISTJ

Introverted Sensing (Si): Introverted Sensing deals primarily with recalling facts and details of past events. Sheldon has an eidetic memory. Introverted Sensing is very tradition and ritual oriented. Sheldon holds on to these traditions very closely. In the series often Leonard and Howard often convince him to do many things just by saying its a ‘social custom’. He tends to know all the facts and enjoys system and order.He says that he does not like change and thinks that change never good,this is mostly where I believe that he is not an NT and more of an SJ. Sheldon sometimes become stubborn and refuses to try new experiences. Continue reading