Character · My Mister
Park Dong-hoon's IQ, and what My Mister's IQ Score actually reveals.
How smart is Park Dong-hoon? Smart enough that "Park Dong-hoon's IQ" is one of the most searched questions about My Mister. Here is the defensible read of the mind the show actually builds, the 189/200 IQ Score behind it, and why no invented number does it justice.
The answer
Park Dong-hoon anchors My Mister as one of its central intelligences, and the show earns a 189/200 IQ Score (Masterclass tier) for how seriously it builds that mind. That score is the real, measurable answer the search is circling. The specific IQ figures floating around online are invented; no clinical IQ test applies to a fictional character, and TVI does not fabricate one. We rate the work, not the character, on a published 0 to 200 rubric.
Who Park Dong-hoon is, and what kind of intelligence the show actually depicts
Park Dong-hoon (Lee Sun-kyun) is middle-aged construction-firm engineer whose chance professional intersection with a 21-year-old precarious-worker (Lee Ji-an, played by IU) forms the K-drama widely cited as the medium's most-perfect entry. The character's intellectual signature in the show is the cognitive register of someone whose moral architecture survived corporate-class compromise, intelligence-as-quiet-decency-in-an-architecture-organized-against-it, the rare K-drama protagonist whose specific professional-class positioning the show treats as the actual material.
This is the part of the question "what is Park Dong-hoon's IQ" that the search engine flattens. The real question, the one viewers are circling, is whether the show treats Park Dong-hoon's mind seriously. That's the question TVI can actually answer.
What the IQ Score reveals about the portrayal
My Mister scores 189/200 (Masterclass tier, among the highest K-drama scores in the database) and Park Dong-hoon is the canonical reason. Lee Sun-kyun's late-career performance, among his final major works before his 2023 death, committed to letting the contained-dignity register be the show's actual subject. The Park-Dong-hoon / Lee-Ji-an relationship is rare prestige-TV cross-generational dynamic that the show refuses to romanticize, which is the structural decision that makes the property exceptional.
For the full score breakdown, Cognitive Stimulation, Educational Value, Craft & Quality, and the rationale, see My Mister on TV Intelligentsia. Or read what an IQ Score is and how it's calculated.
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