Good Boy 2025 Kdrama Cast And Information
Yoon Dong-Ju (Park Bo-Gum) is an Olympic boxing gold medallist whose life takes an unexpected turn after achieving global fame. Despite facing personal hardships, his athletic achievements pave the way for a new beginning—as a police officer. Stepping into a new role, he starts his second chapter in life, determined to make a difference.
Ji Han-Na (Kim So-Hyun), celebrated as the “goddess of shooting” for both her exceptional talent and stunning appearance, is also an Olympic gold medallist in sport shooting. However, a shocking incident forces her to walk away from the sport and pursue a different path. She, too, becomes a police officer.
Now serving side by side, Yoon Dong-Ju and Ji Han-Na—two former Olympic champions—join forces to confront a world plagued by injustice and moral decay, using their strength, discipline, and unyielding sense of duty to fight for what’s right.
K Profile
Other Name: Good Boy ( Korean Drama )
Native Title: 굿보이
Also Known As: Gusboi
Director: Shim Na Yeon
Genres: Action, Comedy, Romance, Sports
Country: South Korea
Type: Drama
Episodes: 16
Aired: May 31, 2025 – Jul 20, 2025
Aired On: Saturday, Sunday
Original Network: jTBC
Duration: 1 hr. 10 min.
Good Boy 2025 KDrama Cast
Main Role In Good Boy 2025
Park Bo Gum as Yun Dong Ju | (Main Role)
Kim So Hyun as Ji Han Na | (Main Role)
Oh Jung Se as Min Ju Yeong | (Main Role)
Lee Sang Yi as Kim Jong Hyeon | (Main Role)
Heo Sung Tae as Ko Man Sik | (Main Role)
Tae Won Seok as Sin Jae Hong | (Main Role)
Support Role In Good Boy 2025
Lee Ho Jung as “Drug Monster” / “Drugmon” | (Support Role)
Jeong Man Sik as O Jeong Gu [Former national boxing team coach] | (Support Role)
Seo Hyun Chul as Hwang Gyeong Cheol [Chief of police] | (Support Role)
Park Cheol Min as Kim Geum Nam [Pawn shop owner] | (Support Role)
Seo Jung Yeon as Jung Mi Ja [Noodle restaurant owner] | (Support Role)
Han Kyu Won as An Dae Yong [Team leader] | (Support Role)
Seo Jae Hee as Jin Gyeong Suk [Han Na’s mother] | (Support Role)
Choi Myung Bin as Ko Jeong A [Man Sik’s daughter] | (Support Role)
Ko Jun as Leo | (Support Role)
Kim Eung Soo as Cho Pan Yeol [Commissioner] | (Support Role)
Lee Ji Hye as Jung Gyeong Mi [Police officer] | (Support Role)
Nam Jin Bok as Section Chief Lee | (Support Role)
Kim Seo Kyung as Kim Seok Hyeon [Prosecutor] | (Support Role)
Guest Role In Good Boy 2025
Lee Kun Goo as [Gangster] | (Guest Role, Ep. 1)
Son Ki Chul as [Reporter] | (Guest Role, Ep. 1)
Yoo In Soo as Bong Da Ri / “Bagboy” [Golden Rabbit leader] | (Guest Role, Ep. 1)
Lee Jung Ha as Lee Gyeong Il | (Guest Role, Ep. 1–3)
Kang Gil Woo as Lee Sang Gun [Geumtokipa’s head] | (Guest Role, Ep. 1–2, 9, 11)
Na Ho Sook as [Jin Su’s mother] | (Guest Role, Ep. 1–2)
Lee Soo Mi as [Grocery store owner] | (Guest Role, Ep. 2)
Kim Eun Kyung as [Neighborhood woman] | (Guest Role, Ep. 2)
Moon Jung Dae as [Crime scene investigator] | (Guest Role, Ep. 2)
Choi Woo Jin as Dr. Choi U Jin | (Guest Role, Ep. 2, 8)
Kim Chan Hyung as Correctional officer Han | (Guest Role, Ep. 3)
Kim Jong Hyeon as [Realtor] | (Guest Role, Ep. 3)
Im Chul Hyung as [Police captain] | (Guest Role, Ep. 3)
Song Young Chang as O Bong Chan [Smuggler] | (Guest Role, Ep. 3, 11–12)
Jung Jae Won as Lee Gwang Se [Smuggler] | (Guest Role, Ep. 4)
Lee Ji Hoon as [Doctor] | (Guest Role, Ep. 5)
Lee Da Eun as [Shooter] | (Guest Role, Ep. 5)
Lee Yoon Jae as [Chief prosecutor] | (Guest Role, Ep. 5)
Choi Woo Jung as [Nurse] | (Guest Role, Ep. 5)
Lee Ji Hoon as Lee Hun [Neurosurgeon] | (Guest Role, Ep. 5, 7, 10)
Sung Ji Ru as No Deok Gyu [Mayor] | (Guest Role, Ep. 6)
Kwon Dong Ho as Park Bong Pil [Drug manufacturer] | (Guest Role, Ep. 6)
Ha Seung Yeon as [Police officer] | (Guest Role, Ep. 6)
Kang Hak Soo as [Manager] | (Guest Role, Ep. 6)
Han Sang Chul as [Awakened man] | (Guest Role, Ep. 6)
Oh Jung Tae as Dae Po Dong | (Guest Role, Ep. 7)
Choi Young Min as [Doctor] | (Guest Role, Ep. 8)
Yoon Jong Goo as [Protest leader] | (Guest Role, Ep. 8–9)
Lee Gyu Sub as [Yakuza leader] | (Guest Role, Ep. 9)
Gi Hwan as [Fencing announcer] | (Guest Role, Ep. 9)
Park Chul Min as [Fencing announcer] | (Guest Role, Ep. 9)
Lee Su Hyung as [Interpreter] | (Guest Role, Ep. 9, 11)
Song Hoon as Richard Jung | (Guest Role, Ep. 10)
Lee Seo Jin as Yun Dong Ju [Child] | (Guest Role, Ep. 10)
Woo Soo Bin as Detective Kang | (Guest Role, Ep. 11)
Ri Min as [Retired detective] | (Guest Role, Ep. 11)
Kim Hee Won as [Sports commission clerk] | (Guest Role, Ep. 11–12)
Lee Young Joo as [Doctor] | (Guest Role, Ep. 12)
Shin Kang Kyun as [Watch seller] | (Guest Role, Ep. 12)
Min Sang Chul as [Crime scene investigator] | (Guest Role, Ep. 12)
Lee Jung Choon as Lee Yong Ju | (Guest Role, Ep. 14)
Jun Sung Won as [Truck driver] | (Guest Role, Ep. 14)
Lee Su Jeong as Kim Yu Na | (Guest Role)
Lee Han Sol as Lee Jin Su [Export officer] | (Guest Role)
Lee Dal as “Silver Bunny” | (Guest Role)
Lee Ki Sub as Investigator Jang | (Guest Role)
Shin Moon Sung as Section Chief Song | (Guest Role)
Kim Ji Yoo as Ji Han Na [Child] | (Guest Role)
Kim Young Sung as Ji Ho Cheol [Han Na’s father] | (Guest Role)
Ahn Se Ho as Baek Seok Chun [Gang member] | (Guest Role)
Yoon Sang Won as Yang Cheon Bae [Gang member] | (Guest Role)
Park Jeong Woo as [Gang member] | (Guest Role)
Lee Chan Jong as [Detective] | (Guest Role)
Choi Seong Hyuk as [Detective] | (Guest Role)
Lee So Geum as [Ex-convict] | (Guest Role)
Joo Jin Soo as [Tour guide] | (Guest Role)
Lee Dong Gyu as [Anchorman] | (Guest Role)
Yeom Ji Hye as [Anchorman] | (Guest Role)
Im Seung Min as [Teen shooter] | (Guest Role)
Kim So Yang as [Police officer] | (Guest Role)