Hello Monster

Seo In-guk

Lee Hyun

Jang Na-ra

Cha Ji-an

Park Bo-gum

Jung Sun-ho/Lee Min

Lee Chun-hee

Kang Eun-hyuk

Choi Won-young

Lee Joon-ho/Lee Joon-yeong

Im Ji-eun

Hyun Ji-soo

Min Sung-wook

Son Myung-woo

Kim Jae-young

Min Seung-Joo

Jun Kwang-ryul

Lee Joong-Min

Son Seung-won

Choi Eun-Bok