Self

Kim Mu-chan

Cha Cha-woong

Kang Il Hoon / Chen / Baek Dong Jin / Michael

Ga Yeol-chan

Kang San-Hyeok

Hae-Jin Park

Kim Seol-Woo

Kim Seol-woo / Ghost Agent K

Romantic Boss

Himself

Shen An

Yoo Jeong

Lee Jung-moon

Han Jae-joon

Lee Hwi-kyung

Lee Sang-woo

Ha Ryu

Shin Myung-hoon

family member

himself

Jung Moo-young

Yeon Ha-Na