Functional Order: Ni/Te/Fi/Se
Dominant Function: Ni
Beckett is known for her keen determination, boardering on the point of obsessiveness. When she is confronted with a thrilling crime, she won‘t allow herself to get distracted until she solved the case. Her strong intuition helps her to notice loose ends and small cues that don‘t fit in with the bigger picture. She isn‘t satisfied until everything correpsonds with her inner vision of the case and fits into the bigger picture. Beckett is also skilled at reading people and manipulate them into certain directions, correctly assessing how they will react to her behaviors, which helps her tricking and manipulating Castle at times. She is also quick to catch up on symbolism and hidden messages that help her solve the case.
Auxiliary Function: Te
Beckett is a very non-nonsense person and focused on solving the case at hand. She has little patience for others ineffectiveness or distractions and is often annoyed by Castle‘s crazy theories that seem to lead nowhere. Instead she prefers to focus on the tangible facts, but is willing to look at them from an unconventional, bigger picture perspective (Ni/Te) to solve a crime. Castle struggles with being a workaholic and can‘t rarely let go of her cases, even during vacation. She is blunt, strict and authoritative with others, having gained a reputation as a competent, but difficult officer.
Tertiary Function: Fi
While Beckett seems calm and collected on the outside, there is a different side to her. In reality she is deeply sensitive and harbors much emotional trauma, which she hides even from those closest to her. She finds it hard to express her deep feelings and often hides them behind a serious or teasing front. Beckett is also very empathetic towards some of the victims relatives, since she can relate to their feelings, as her own mother has been killed by an unknown serial killer. Beckett develops her Fi throughout Castle, learning to voice her own feelings and share her emotions, which those closest to her. She also builds genuine emotional connections, which castle and her coworkers instead of dealing with them solely on a professional level.
Inferior Function: Se
Beckett is analytical and largely detached from the world around her. While she is a capeable cop, she seems somewhat anxious when directly confronted with crime suspects and involved in action. She often tries to keep Castke out of such action to protect him, but ends up getting helped out or protected by him. Beckett is normally cerebral and stoic, but partakes in risky schemes to solve her cases, like dressing up as a Russian prostitute and infiltrating a game of poker to catch some murder suspects. While she can occasionally dress up and enjoys certain luxuries and the prestige Castle‘s books bring her, she normally is above such things, dressing herself practically and keeping out of most of the trouble and social events, preferring to take a good read instead.