Sarah Jane Smith: ISFJ

Guest Post by Sylver, ISTP

Doctor Who/The Sarah Jane Adventures

Sarah Jane Smith ISFJ | Doctor Who #MBTI #ISFJ

Introverted Sensing (Si): Sarah Jane is first and foremost concerned with how things have been. She is the first to notice changes in time (ex. ‘That book was closed when I set it down’). She remembers in great detail – and with very little effort – the details of things that happened to her in her childhood, including the exact story that her aunt told her about the day her parents died. Every alien she’s ever met, she remembers, no matter how long it’s been since she saw it, and she will use whatever method worked in the past to defeat them. She is also very sentimental, and remembers the story behind each one of the mementos artifacts she hoards keeps.

Sarah Jane Smith ISFJ | Doctor Who #MBTI #ISFJ

Extroverted Feeling (Fe): A very loving and motherly woman, Sarah Jane immediately connects with the people around her. When she adventures with the Doctor she tries to solve problems by talking to people. She has no issues adopting his moral code: ‘Guns are bad’, for example. And, well, where do you think she got the idea for her sonic lipstick? She thinks of others first and although she was primarily a soloist before she stumbled across her adopted family (Luke, Maria, Clyde, Rani), she made that decision logically (Ti) to avoid putting others in harm’s way. On top of all this, she is very good at charming convincing others to do what she wishes. Most of her critiques and decisions come from her moral side. When the Trickster confronts her with the opportunity to see her parents again, she is visibly distressed and does not have the willpower (characteristic of Fi) to stick to what she knows is right by resisting the temptation to go back in time to save them.

Sarah Jane Smith ISFJ | Doctor Who #MBTI #ISFJ

Introverted Thinking (Ti): Sarah Jane does not verbalize her thought process. Instead she simply states her conclusion, which often confuses both friends and enemies alike. She does not operate by external logic. This, in conjunction with her reliance on previous memory, can work against her. For example, when two people show up claiming that Luke is actually their son (taken by the Bane and modified) Sarah Jane accepts it because it makes sense to her and because her previous knowledge supports the theory. Maria, however, immediately intuits (correctly) that something is wrong and searches for proof.

Sarah Jane Smith ISFJ | Doctor Who #MBTI #ISFJ

Extroverted Intuition (Ne): As her weakest function, it doesn’t usually make itself obvious. Primarily we see her Ne manifest in explosions of catastrophising. She also isn’t great at predicting how her actions will make her adopted ‘family’ feel, such as when she dismisses Rani’s efforts to find something to investigate, accidentally prompting Rani  to go off on her own into a dangerous environment to prove herself.


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