A Hard Day: Cast
Lee Sun-kyun
Go Gun-su
Cho Jin-woong
Park Chang-min
Jeong Man-sik
Detective Choi
Shin Jung-keun
Chief of Homicide
Shin Dong-mi
Younger Sister
Heo Jung-eun
Min-a
Kim Dong-young
Detective Doh
Ju Seok-tae
Detective
Park Bo-gum
Officer Lee Jin-ho
Lee Ji-hoon
Police Officer of Chemistry Storage
Kim Bo-kyung
Ex-wife
Kim Kang-hyun
Young-cheol
Kim Hae-gon
Vault Owner
Ki Joo-bong
Mr. Kim
Bae Yu-ram
Police Officer
Jang In-sub
Police Officer
Seo Hyun-woo
Police Officer
Jang Jun-nyeong
Mr. Choi
Lee Geun-hoo
Jeong Bi-sa