Flex x Cop

Ahn Bo-Hyun

Jin I-soo

Ji-Hyun Park

Lee Kang-hyeon

Kang Sang-Joon

Park Jun-yeong

Kim Shin Bi

Choi Kyeong-jin

Yoon Yoo-sun

Go Mi-sook

Jung Ga-hee

Yoon Ji-won

Kwak Si-yang

Jeon Seung-joo - Special appearance

Jang Hyuk-jin

Wang Jong-tae

Hae-hyo Kwon

Lee Hyeong-joon

Hyun-Sung Jang

Jin Myeong-cheol

Lee Do-yeop

Park Chan-geon

Byeong-chun Kim

Hwang Seong-goo

Dong-won Seo

Lee Gi-seok

Choi Dong-Gu

Kim Yeong-hwan

Myung-Soo Kim

Choi Jeong-hoon

Hwa-Jung Lee

Museum director

Ha Yoon-kyung

Hong Eun-ah