조병규

Ro-han

Seo Min-ki

Seo Min Gi

Jeon Woo-seok

한기우

Je-a

Jungsik

Do Gun-tae

So Mun

Hang-nam

Han Jae Hee

Self

Satenik

Youngest Detective

Johan

Kang Sung Mo (young)

Go Woo-chul

Cha Gi-jun

김종일

Kim Jong-il

Kim Bok-Kyu

Dong-hoon

Cho Byung-kyu

Self

Ko Hoon-Jung

young Pil-Joo

Lee Bong-Soo

Baek Seok-hee