Good Boy (굿보이) is JTBC’s 2025 action-comedy about former elite athletes — Olympic and international medalists whose careers were cut short by injury, money trouble, or scandal — who get a second life as cops. Recruited through a special “Olympic” hiring program, they form a rag-tag special team that the show treats like an “Olympic Avengers” squad, taking on violent crime and cases of injustice with the physical skills they built in sport. It pairs Park Bo-gum as a former gold-medal boxer with Kim So-hyun as the “shooting goddess” who walked away from the sport. If you’re deciding whether to start it — or where to stream it outside Korea — here’s the rundown, kept spoiler-light.
The premise, kept spoiler-free
The hook is simple and a little ridiculous in the best way: take medalists whose athletic careers fell apart, hand them badges, and point them at the worst people in town. Lead Yoon Dong-ju (Park Bo-gum) is a former Olympic gold-medal boxer who joins the violent-crime special team as a rookie officer. Ji Han-na (Kim So-hyun) is a former Olympic gold-medal shooter — the cool-headed sharpshooter the team can’t function without. Around them the squad fills out with a former sabre fencer, a former wrestler, and a former discus thrower, each of them turning a retired sport into a fighting style.
Genre-wise it’s an action comedy and crime story with romance threaded through, so expect tonal swings — broad comedy one scene, a grounded crime beat the next. It runs 16 episodes and is directed by Shim Na-yeon (of Beyond Evil and The Good Bad Mother) and written by Lee Dae-il (Life on Mars, the Chief of Staff series), with production by SLL, Studio&NEW, and Drama House Studio.
The cast and characters
This was a high-profile return to television for Park Bo-gum, paired with Kim So-hyun, and the supporting bench is deep:
- Park Bo-gum as Yoon Dong-ju — the lead, a former Olympic gold-medal boxer turned rookie cop.
- Kim So-hyun as Ji Han-na — the female lead, a former gold-medal sport shooter and the team’s sharpshooter.
- Oh Jung-se as Min Ju-young — the main villain, a customs civil servant by day who secretly runs Inseong City as a drug-cartel kingpin shielded by political power.
- Lee Sang-yi as Kim Jong-hyeon — a former silver-medal sabre fencer and the team’s strategist.
- Heo Sung-tae as Ko Man-sik — a former bronze-medal wrestler and the team’s leader.
- Tae Won-seok as Shin Jae-hong — a former bronze-medal discus thrower and the squad’s powerhouse.
The wider ensemble includes Jung Man-sik as former boxing coach Oh Jong-gu, Lee Ho-jung as drug dealer “Magwi,” Go Jun as Russian mafia boss Leo, Kim Eung-soo as a regional police commissioner, and Park Chul-min as a pawnshop informant, among others. Lee Jung-ha appears in a special role as Lee Kyung-il.
Where to watch, by region
- South Korea: first-run on JTBC in the Saturday–Sunday weekend slot at 22:40 KST. It aired May 31 to July 20, 2025. Korean streaming was spread across multiple domestic platforms — reported on Netflix, Disney+, Wavve, TVING, Coupang Play, and CHZZK — though the exact mix varies by source, so confirm on each service.
- International: on Amazon Prime Video, which carried the series globally (reported in 240+ countries and territories outside Korea), where it performed strongly — reported to have reached as high as #2 globally on Prime Video. Outside Korea, Prime Video is the simplest legal route, and with the run finished it’s a clean binge rather than a weekly wait.
How it did
The numbers climbed across the run. Good Boy premiered on May 31, 2025 at roughly 4.8% nationwide (paid-household, Nielsen Korea), with a peak per-minute rating of 7.3%. Ratings rose through the season, and the July 20 finale was the series high at about 8.1% nationwide (around 7.7% in Seoul); Wikipedia cites an average near 6.0%, though the precise figure varies by source. Beyond the domestic numbers, the show drew real international attention through Prime Video, which made it one of the year’s bigger crossover Korean titles.
The OST
The soundtrack rolled out in parts — reported as a seven-part release running from roughly June 1 to July 13, 2025, on Warner Music Korea / SLL. Reported tracks and artists include MAX’s “Get in the Ring,” Young K (DAY6) with “Love Will Find a Way” (나무가 될게), HYNN’s “With Your Love” (날 안아, 사랑으로), TWS’s “Brand New Day,” George (죠지) with “All Alone,” JUNNY & KATSEYE on “Time Lapse” (with a JUNNY English version too), and lead actor Park Bo-gum singing “Waterfall” / “날 찾아가는 길.” Romanized titles and exact dates vary slightly between sources, so check the official OST listing if you want the definitive tracklist — but if a cue catches you mid-episode, it’s usually findable on the major streaming platforms within days.
Whether to start it
The honest pitch: if you like a high-concept action-comedy premise carried by a committed cast, Good Boy is an easy yes — the athlete-to-cop conceit gives each fight a distinct flavor, and the 16-episode length keeps it moving. If you came for a grounded crime procedural, the broad comedy and romance may read as tonally busy. Either way, with the full run already on Prime Video internationally, now is a clean time to catch up before the twists get spoiled everywhere.
The squad runs on after-work camaraderie, so if the team-dinner scenes leave you hungry, the meal they’re built around is grilled samgyeopsal and soju — the easiest thing to cook while you binge.
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