Plot: Santa's chase after "K" puts the team on high alert, especially Kyung-yi. A spooked co-conspirator distances himself from the criminal mastermind
Cast
Lee Young-aeKoo Kyung-yiLee Young-ae was 50 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Sun, Jan 31 1971
Kim Hye-junSong Yi-kyung / "K"Kim Hye-jun was 26 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Mon, May 08 1995
Kim Hae-sookDirector YongKim Hae-sook was 65 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Fri, Dec 30 1955
Kwak Sun-youngNa Je-huiKwak Sun-young was 38 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Wed, May 11 1983
Baek Sung-chulSantaBaek Sung-chul was 22 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Wed, Mar 10 1999
Cho Hyun-chulOh Gyeong-suCho Hyun-chul was 34 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Wed, Dec 24 1986
Lee Hong-naeAn Geon-ukLee Hong-nae was 31 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Sun, Jan 28 1990
Bae Hae-seonJung Jeong-yeonBae Hae-seon was 47 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Wed, May 08 1974
Choi Young-junJang Seong-uChoi Young-jun was 41 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Mon, Jul 07 1980
Park Ye-yeongYoon Jae-yeongPark Ye-yeong was 32 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Tue, Aug 22 1989
Jeong Seok-yongMr. KimJeong Seok-yong was 50 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Tue, Mar 23 1971
Jung Jong-joonJe-hui's fatherJung Jong-joon was 65 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Sat, Mar 03 1956
Park Kang-seopLee Dae-hoPark Kang-seop was 30 in Inspector Koo - Season 1 - Episode 4 (Episode 4).
Birthday: Mon, Oct 21 1991