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Jang Keun-suk

Sa Do-Chan / Baek Joon-Soo

Han Ye-ri

Oh Ha-Ra

Jung Woong-in

Geum Tae-Woong

Jo Hee-bong

Director Bong

Shin Do-hyun

So Eun-Ji

An Seung-Hwan

Jeon In-Tae

Lee Jeong-kil

Choi Jung-Pil

Kim Seo-ra

Ha-Ra's mother

Cha Yeob

Investigator Go

Choi Jae-won

Jung Do-Young

Go Wook

Manager Kim

Park Won-sang

Yang Ji-Soong