Sarah Truong | Hudson & Rex

An analysis of Hudson & Rex character Sarah Truong, exploring how her compassion, forensic precision, and moral integrity point to an ISFJ 2w1 personality type.

Sarah Truong’s personality in Hudson & Rex, portrayed by Mayko Nguyen, reflects the steady compassion, procedural discipline, and relationship-focused support typical of an ISFJ personality type. Her careful forensic methodology, loyalty to those she loves, and strong ethical convictions align closely with Enneagram 2w1, making her a clear example of an ISFJ 2w1 character. Through her nurturing presence, meticulous investigative work, and principled decision-making, Sarah demonstrates how empathy and professionalism can coexist in high-pressure criminal investigations.

ISFJ 2w1 Characters

Why is Sarah Truong from Hudson & Rex an ISFJ? Continue reading for my argument using cognitive functions! The headers for each section are clickable, so you can easily access more information about the dominant function and the Enneagram type, or discover more characters who share the type.

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Introverted Sensing

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Sarah is an expert medical examiner whose meticulous attention to detail helps Charlie Hudson solve crimes. While he manages the scene, she goes in there to examine and track all the details. She likes to fully gather them and scientifically back up her claims before she will tell him what kind of weapon was used, how long the body lay there, the time of death, or what toxins are in the blood.

She maintains a pristine office that Rex isn’t allowed into (in case he contaminates it) and she follows procedure exactly. She is more mindful of the rules and why they exist than Charlie, who bulldozes through them if he can find a faster method of exposing criminal behavior. Eventually, Sarah takes more of an active role in helping him investigate outside of the medical examiner’s office, where she is cautious and does not like Charlie to take risks. She is opposed to his going undercover in the prison because, “Charlie, some of those guys are behind bars because of you.” When he’s hurt in a prison brawl, she wants him to leave off the case; she has seen that the danger has been established and he could get seriously hurt.

When they become romantically involved, she easily moves into his house and his life, caring for Rex, cooking and cleaning, and looking for ways to make their lives more physically comfortable. She joins her routine with Charlie, and they go for morning runs together. All symbolic of her establishing a lifestyle alongside him.

Extraverted Feeling

She is good at taking care of other people and their feelings, and asking them to express what they are experiencing on an emotional level. When she sees Charlie struggling without Rex, she asks him if he is all right and if there is anything she can do to help him (he says they have to solve the case and keep going).

Sarah is more concerned with what others think about their relationship than Charlie is , and wants to keep it a secret in case of coworker disapproval for a while, even though it’s not prohibited by the rules. She knows it looks unprofessional and could cause problems in the department, so she wants to let their relationship mature before she shares the truth with their friends.

She is good with suspects and with comforting the bereaved, by gently framing things in such a way as to be non-offensive or hurtful. Even though she intensely dislikes a woman she knew at college, Sarah tries to “play nice” with her over a case, until she discovers the woman has been falsifying evidence and lied about it; then she goes to her, tells her she called the examiner’s board, and they are going to yank her practice license. Sarah wants to see how her nemesis feels about this, even though she acted out of principle.

Introverted Thinking

Her investigations involve a lot of diagnostic thinking; how something happened, why it happened, in what manner it happened, etc., drawn from the evidence. Sarah is good at this and can be practical, pragmatic, and objective when doing her work. She doesn’t mind taking apart dead bodies and examining them because she believes what she is doing is for the greater good of society (Fe) and she treats them with respect.

She is always trying to figure out those around her, to better interact with them, in the way ISFJs enjoy doing. And she is thirsty for more information and continues to study, gain more prestige in her career trajectory, and improve her methods by tweaking them.

Extroverted Intuition

Sarah is more cautious than Charlie and more fearful of the unknown consequences of his actions. She cautions him to be careful multiple times and doesn’t like to take risks out of a general desire not to destabilize their lives. She is reluctant to theorize without proof; she wants to have all the facts in hand before she guesses what motivations killed someone, or who might be responsible; but she is comfortable brainstorming about this with Jesse and Charlie in the workroom.

The Enneagram 2

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Sarah’s primary motivation is her need to be there to help, support, and care for people, primarily Charlie and Rex. She emotionally looks after her family, friends, and coworkers, and steps in to comfort others during a crisis by asking how she can help them and what she can do for them. She tries to uplift and nurture all of her relationships, including hers with Charlie, by offering reassurance rather than negativity or believing things will go badly.

She is soft-spoken and loves to do things for Charlie and Rex; she admits several times that she only wants to look “after” people, and sometimes she does things without permission because she feels it is “best.” Sarah pushes him to reconcile with his dad, to face his past, or to deal with things he doesn’t feel ready to tackle, just to get them out of the way, and because she believe this would be “best” for him. Sometimes, she will even sit down with Rex and cuddle him and tell him things are going to be all right.

The 1 Wing

Her dedication to doing things right and being legitimate comes out the strongest in one episode that deals with a girl she hated in college. Sarah finds out that this woman has been paid off to ruin an investigation, and she immediately reports her to the authorities, which ends up getting the woman into trouble and potentially sent to jail. It’s not done out of resentment, hatred, or satisfaction at paying her back for old issues between them, but because this person broke the law, and the law has to be obeyed. But rather than take the coward’s way out, Sarah goes to her and confronts her with the evidence, so that she knows who put her behind bars and why. She feels she stands on moral principles, and that gives her the confidence to be confrontational. The few other times that Sarah is “hard” with someone comes from a similar felt-sense that what she is doing is the morally correct thing to do.