Pemeran Mask Girl

Lee Han Byeol

as Kim Mo Mi

Pemeran Utama

Go Hyun Jung (고현정)

as Kim Mo Mi

Pemeran Utama

Nana (Im Jin Ah) (임진아)

as Kim Mo Mi

Pemeran Utama

Ahn Jae Hong

as Joo O Nam

Pemeran Utama

Yeom Hye Ran

as Kim Gyeong Ja

Pemeran Utama

Shin Ye Seo

as Kim Mi Mo

Pemeran Pembantu

Kim Ga Hee

as Yoo Sang Sun

Pemeran Pembantu

Moon Sook

as Sim Yeong Hui [Mo Mi's mother]

Pemeran Pembantu

Kim Min Seo

as Kim Ye Chun

Pemeran Pembantu

Lee Soo Mi

as An Eun Suk

Pemeran Pembantu

Lee Seon Hee

as O Ae Ja [Huiseong Penitentiary warden]

Pemeran Pembantu

Jang Won Young

as Executive Manager Kim

Bintang Tamu

Do Mi Yeon

as [Daehan Insurance employee in elevator] (Ep. 1)

Bintang Tamu

Park Mu Yeom

as [Daehan Insurance rooftop employee] (Ep. 1)

Bintang Tamu

Park Joon Hwan

as [Daehan Insurance employee] (Ep. 1)

Bintang Tamu

Hong Suk Bin

as [Police substation captain] (Ep. 1)

Bintang Tamu

Choi Daniel

as Park Gi Hun (Ep. 1-2)

Bintang Tamu

Park Jeong Hwa

as Lee A Reum (Ep. 1-2)

Bintang Tamu

Jung Yeong Gi

as Manager O (Ep. 1-2)

Bintang Tamu

Park Keun Rok

as "Handsome Monk" (Ep. 2)

Bintang Tamu

Park Ga Young

as [Daehan Insurance HR dept. staff] (Ep. 2-3)

Bintang Tamu

Ok Soo Boon

as Won Ju (Ep. 3)

Bintang Tamu

Jong Ho

as Seo Yong Jin [Detective] (Ep. 3)

Bintang Tamu

Heo Dong Won

as Choi Jong Hun [Detective] (Ep. 3)

Bintang Tamu

Seo Young Sam

as [Pastor] (Ep. 3)

Bintang Tamu

Park Sang Hwi

as [Reporter] (Ep. 3)

Bintang Tamu

Kang Sung Rak

as [Computer technician] (Ep. 3)

Bintang Tamu

Sung Ryung

as [Bank teller] (Ep. 3)

Bintang Tamu

Jeon Young

as [Kim Mo Mi's landlord] (Ep. 3)

Bintang Tamu

Jung Hye Kyung

as [Market restaurant owner] (Ep. 3)

Bintang Tamu

Lee Dong Yong

as [Police officer] (Ep. 3)

Bintang Tamu

Kim Gye Seon

as [Church member] (Ep. 3)

Bintang Tamu

Lee Young Joo

as [Church member] (Ep. 3)

Bintang Tamu

Jo Hyun Im

as [Church member] (Ep. 3)

Bintang Tamu

Shin Dong Ryuk

as [Taxi co. manager] (Ep. 3)

Bintang Tamu

Han Jae Yi

as Kim Chun Ae (Ep. 3-4)

Bintang Tamu

Kim Hyun Mok

as Teddy (Ep. 4)

Bintang Tamu

Kim Sang Ji

as Kim Chun Ae [Teen] (Ep. 4)

Bintang Tamu

Lee Jun Young (이준영)

as Choi Bu Yeong (Ep. 4)

Bintang Tamu

Moon Jong Up

as [Prince member 2] (Ep. 4)

Bintang Tamu

Oh Jin Seok

as [Prince member] (Ep. 4)

Bintang Tamu

Lee Joon Hee

as [High school teacher] (Ep. 4)

Bintang Tamu

Kim Hye Hwa

as [Hostess club manager] (Ep. 4)

Bintang Tamu

Na Ho Sook

as [Judge] (Ep. 5)

Bintang Tamu

Heo Sung Woo

as [Associate judge] (Ep. 5)

Bintang Tamu

Kim Sung Mi

as [Handsome monk's mother] (Ep. 5)

Bintang Tamu

Kang Jee Seok

as Park Hyeong Suk (Ep. 5)

Bintang Tamu

Yoon Sung Won

as Kim Hyeon Bong [Doctor] (Ep. 5)

Bintang Tamu

Hwang Do Yoon

as [Bully student] (Ep. 5)

Bintang Tamu

Choi Ga In

as [Homeroom teacher] (Ep. 5)

Bintang Tamu

Kim Hee Chang

as [Kim Ye Chun's father] (Ep. 5)

Bintang Tamu

Yoon Sa Bong

as [Kim Ye Chun's mother] (Ep. 5)

Bintang Tamu

Park Joo Ha

as [Elementary school girl] (Ep. 5)

Bintang Tamu

Jang Joon Young

as [Reporter] (Ep. 6)

Bintang Tamu

Kim Ah Hyun

as [Tattoo prisoner] (Ep. 6)

Bintang Tamu

Kim Bi Bi

as [Church volunteer] (Ep. 6)

Bintang Tamu

Lee Sang Hee

as [Real estate agent] (Ep. 6)

Bintang Tamu

O Ji Yeong

as [Prisoner] (Ep. 6-7)

Bintang Tamu

Ko Na Young

as [Prisoner] (Ep. 7)

Bintang Tamu

Lee Hyun

as [Prisoner] (Ep. 7)

Bintang Tamu

Kim Ki Moo

as [Gangster] (Ep. 7)

Bintang Tamu

Kim Ji Na

as [Prison officer] (Ep. 7)

Bintang Tamu

Kim Yun Jeong

as [Prison officer] (Ep. 7)

Bintang Tamu

Lee Yoo Joon

as [Police officer] (Ep. 7)

Bintang Tamu

Kim Eun Kyung

as [Cashier] (Ep. 7)

Bintang Tamu

Im Yu Ran

as [Accident driver] (Ep. 7)

Bintang Tamu

Park Ok Chool

as [Passerby driver] (Ep. 7)

Bintang Tamu

O Gyu Taek

as [Camera store staff] (Ep. 7)

Bintang Tamu

Yoon Ji An

as [Nurse] (Ep. 7)

Bintang Tamu

Sung Do Hyun

as [Detective team leader] (Ep. 7)

Bintang Tamu

Kim Ha Neul

as Kim Mi Mo [Child]

Bintang Tamu

Jin Mi Sa

as [Mo Mi's cellmate]

Bintang Tamu

You Dong Bum

as [Detective]

Bintang Tamu

Jang Won Hyuk

as [Bu Yeong's friend]

Bintang Tamu

Jo Mi Nyeo

as [Prisoner]

Bintang Tamu

Song Young Joo

as [Prisoner]

Bintang Tamu

Goo Min Sol

Bintang Tamu

Kim Hye Jun

Bintang Tamu

Baek So Mi

as [Mi Mo's friend's mother] (Ep. 5)

Bintang Tamu

Ha Ju Ae

Bintang Tamu

Lee Jun Hyeok

as [Agency man] (Ep. 3)

Bintang Tamu

Ryu Seong Hee

Art Director

Kim Yong Hoon

Screenwriter & Sutradara

Park In Guk

as [Korean Marine Insurance employee]

Extras Casting

Ahn Jae Hwa

as [Prisoner 5] (Ep. 6-7)

Bit part