Series synopsis
Good Boy, also known as 굿보이 is a South Korean crime comedy action & adventure drama television series that premiered on JTBC on May 31, 2025. It ended on July 20, 2025. It was created by Sim Na-yeon, Lee Dae-il. It stars Park Bo-gum, Kim So-hyun, Oh Jung-se and Lee Sang-yi.
Olympic medalists join the police force through a special recruitment program, trading medals for badges as they tackle violent crimes and injustices with their athletic skills.
Premise
Olympic medalists join the police force through a special recruitment program, trading medals for badges as they tackle violent crimes and injustices with their athletic skills.
Premise: A different purpose with the same heart of gold.
Cast and characters
Leading cast
- Park Bo-gum as Yun Dong-ju
- Kim So-hyun as Ji Han-na
- Oh Jung-se as Min Joo-young
- Lee Sang-yi as Kim Jong-hyeon
- Heo Sung-tae as Ko Man-sik
- Tae Won-seok as Shin Jae-hong
- Seo Hyun-chul as Hwang Kyeong-cheol
- Jeong Man-sik as Oh Jong-gu
Supporting cast
- Park Chul-min as Kim Geum-nam
- Jung Seo-yeon as Jung Mi-ja
- Eung-soo Kim as Cho Pan-yeol
- Lee Ji-hyeon as Jung Gyeong-mi
- Go Joon as Leo
- Kim Ji Yoo as Young Ji Han-na
Guest cast
- Kim Eung-soo as Jo Pan-yeol
- Han Kyu-won as An Dae-yong
- Lee Ji-hye as Jung Kyung-mi
- Lee Dal as Silver Bunny
- Yoo In-soo as Bagboy
- Na Ho-sook as Lee Jin-su's Mom
- 손기철 as Reporter
- Lee Keon-gu as Gangster
- Choi Woo-jin as Doctor
- Lee Jung-ha as Lee Gyeong-il
- Lee Su-mi as Insung Supermarket Owner
- Seo Jeong-yeon as Jeong Mi-ja
Episodes
This series spans 1 season with 16 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 16 | May 31, 2025 | July 20, 2025 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Our Twisted Hero After causing trouble, Dong-ju is demoted to the Insung Metropolitan Police Agency, where he's treated like dead weight and his fellow world-class medalists also face discrimination and scorn. But when a major case erupts, it reignites the fire in their hearts. |
May 31, 2025 |
| 2 |
Faster, Further, Stronger At Man-sik's suggestion, a special criminal investigation team is formed with the former world-class medalists. Ready for a fresh start, each member joins with their own hopes and goals, but behind the creation of this special team lurks a hidden agenda. |
June 1, 2025 |
| 3 |
Million Dollar Baby Convinced that Ju-yeong is the hit-and-run driver, Dong-ju scrambles to find evidence. Meanwhile, Jong-hyeon heads to the Prosecutors' Office at Man-sik's request to investigate Gyeong-il's case, and Ju-yeong meets someone in the shadows. |
June 7, 2025 |
Production
Release
| Original network/platform | JTBC |
|---|---|
| First aired | May 31, 2025 |
| Last aired | July 20, 2025 |
| Runtime | 69 minutes |
| Status | ended |
| Schedule | Saturday, Sunday at 22:40:00 |