Pemeran Mask

Park Soo Ae

as Byeon Ji Suk / Seo Eun Ha

Pemeran Utama

Ju Ji Hoon (주지훈)

as Choi Min U

Pemeran Utama

Yoo In Young

as Choi Mi Yeon

Pemeran Utama

Yeon Jung Hoon

as Min Seok Hun

Pemeran Utama

Park Jun Gum

as Song Seol Hui [Mi Yeon's mother]

Pemeran Pembantu

Lee Ho Won

as Byeon Ji Hyeok

Pemeran Pembantu

Jung Dong Hwan

as Byeon Dae Seong [Ji Suk's father]

Pemeran Pembantu

Yang Mi Kyung

as Kang Ok Sun

Pemeran Pembantu

Jeon Gook Hwan

as Choi Du Hyeon [President]

Pemeran Pembantu

Lee Jong Nam

as Lee Jeong Sun [Eun Ha's mother]

Pemeran Pembantu

Park Yong Soo

as Seo Jong Hun [Eun Ha's father]

Pemeran Pembantu

Park Joon Myun

as Manager Yeo [Ji Suk's boss]

Pemeran Pembantu

Hwang Seok Jeong

as Mal Ja [Ji Suk's colleague]

Pemeran Pembantu

Kim Byung Ok

as Director Sim

Pemeran Pembantu

Jo Yoon Woo

as O Chang Su [Min U's secretary]

Pemeran Pembantu

Sung Chang Hoon

as Bbul Te [Seok Hun's secretary]

Pemeran Pembantu

Kim Ji Min

as Kim Yeon Su [Min U's maid]

Pemeran Pembantu

Kim Bup Rae

as Yang Song Gi [Eun Ha and Mi Yeon's boss]

Pemeran Pembantu

Park Yeon Soo

as Myeong Hwa [Ji Suk's colleague]

Pemeran Pembantu

Lee Seung Hyung

as [Seok Hun's subordinate]

Pemeran Pembantu

Hong Dong Young

as Ji Hyeok [Young]

Pemeran Pembantu

Seo Hye Jin

as Su Bin

Pemeran Pembantu

Moon Sung Ho

as Nam Cheol

Pemeran Pembantu

Lee Won Jin

as [Choi's exclusive police]

Pemeran Pembantu

Amy Aleha

as [Scientist]

Pemeran Pembantu

Lee Gyu Sub

as [Service gang]

Pemeran Pembantu

Kim Ye Jun

Pemeran Pembantu

Jo Han Sun

as Kim Jeong Tae

Bintang Tamu

Oh Na Mi

as [Client at the jewelry shop] (Ep. 1)

Bintang Tamu

Oh Kyung Soo

as [Guy who asks for a loan] (Ep. 2)

Bintang Tamu

Choi Kwon Soo

as Byeon Ji Hyeok [Young] (Ep. 4)

Bintang Tamu

Kim Chung

as [Eun Ha's mother's friend] (Ep. 4)

Bintang Tamu

Joo Jin Mo

as Psychiatrist Kim

Bintang Tamu

Jeon Jin Seo

as Choi Min U [Child]

Bintang Tamu

Lee Yoon Jung

as Byeon Ji Suk [Teen]

Bintang Tamu

Lee Eun Hee

as Miss Lee

Bintang Tamu

Lee Sung Deuk

as [Ji Suk's high school classmate]

Bintang Tamu

Shin Dong Hoon

as [Big guy]

Bintang Tamu

Park Jin Soo

as [Soup restaurant owner's daughter]

Bintang Tamu

Eom Ji Man

as [Person in the morgue]

Bintang Tamu

Im Chae Young

as [Woman at party]

Bintang Tamu

Nam Tae Hoon

as [Shop manager]

Bintang Tamu

Kim Jung Hwa

Bintang Tamu

Ha Shi Eun

Bintang Tamu

Jung Se Rin

Composer

Boo Sung Chul

Sutradara

Choi Ho Cheol

Screenwriter

Kim Jang Won

Bit part