Seo In-guk

Louie

Nam Ji-hyun

Ko Bok-Shil

Yoon Sang-hyun

Cha Joong-Won

Lim Se-mi

Baek Ma-Ri

Oh Dae-hwan

Jo In-Sung

Kim Yeong-ok

Choi Il-Soon

Uhm Hyo-seop

Kim Ho-Joon

Kim Sun-young

Heo Jung-Ran

Kim Kyu-chul

Baek Sun-Goo

Yun Yoo-sun

Hong Jae-Sook

Hwang Young-hee

Hwang Geum-Ja

Kim Byong-chul

Lee Kyung-Gook

Lee Jae-kyoon

Byun Do-Jin

Kang Ji-sub

Nam Joon-Hyuk

Kim Seung-Han

Louie (young)

Min Bok-gi

[Chief Detective]

Chae Soo-bin

Wang Mong-sil

Lee Sang-yeob

Director

Kim Ho-joon

Producer

Lee Joo-heon

Theme Song Performance

Shownu

Theme Song Performance

HYUNGWON

Theme Song Performance

KIHYUN

Theme Song Performance

Lee Min-hyuk

Theme Song Performance

Umji

Theme Song Performance

WONHO

Theme Song Performance

I.M

Theme Song Performance

Oh Ji-young

Screenplay