Pemeran Somebody

Kim Young Kwang (김영광)

as Seong Yun O

Pemeran Utama

Kang Hae Lim

as Kim Sum

Pemeran Utama

Kim Yong Ji

as Im Mok Won

Pemeran Utama

Kim Su Yeon

as Yeong Gi Eun

Pemeran Utama

Choi Yoo Ha

as Samantha Jung [Spectrum CEO]

Pemeran Pembantu

Chu Seon Woo

as Jang Ha Na

Pemeran Pembantu

Bae Gang Hee

as Lee Ha In [Spectrum Server admin]

Pemeran Pembantu

Song Yeon Ji

as Rose

Pemeran Pembantu

Shin Moon Sung

as Min Gi Ung [Professor]

Pemeran Pembantu

Kim Joong Ki

as Kim Eun Pyeong [Detective]

Pemeran Pembantu

Shim Yoon Bo

as O Bul Gwang [Detective]

Pemeran Pembantu

Kang Ji Eun

as Hong Gong Ju ["Princess Snack Bar" owner]

Pemeran Pembantu

Choi Sang Hyuk

as Sim U Cheol [Spectrum employee]

Pemeran Pembantu

Kim Min Sol

as [High school student] (Ep. 1)

Bintang Tamu

Choi Jae Hoon

as Mr. Jung [Gangster] (Ep. 1, 7)

Bintang Tamu

Kim Na Yeon

as O Na Eun [Professor Min's assistant] (Ep. 2)

Bintang Tamu

Park Yoon Hee

as [TSC director] (Ep. 2)

Bintang Tamu

Lee Ki Chan

as [79NewMoney] (Ep. 3)

Bintang Tamu

Yoon Ji An

as [Woman in couple] (Ep. 3)

Bintang Tamu

Seo Kwang Jae

as [Merchants' association member] (Ep. 3)

Bintang Tamu

Won Chun Gyu

as [Merchants' association chairman] (Ep. 3)

Bintang Tamu

Kim Geum Soon

as [Merchants' association member] (Ep. 3)

Bintang Tamu

Park So Eul

as Kim Seom [Young] (Ep. 4)

Bintang Tamu

Kim Sung Yong

as Kim Seon Yong [Attorney] (Ep. 4)

Bintang Tamu

Lee Ji Ha

as [Seom's mother] (Ep. 4)

Bintang Tamu

Kim Byung Man

as [Hoody man] (Ep. 4)

Bintang Tamu

Kim Byeong Man

as [Hoody man] (Ep. 4)

Bintang Tamu

Choi Rak Yeong

as [Hoody man] (Ep. 4)

Bintang Tamu

Jo Nam Yung

as [Hoody man] (Ep. 4)

Bintang Tamu

Lee Na Ra

as "Foxy" (Ep. 7-8)

Bintang Tamu

Kim Ho

as [Taxi driver] (Ep. 8)

Bintang Tamu

Choi Mi Geum

as [Nightclub girl]

Bintang Tamu

Cha Yu Jin

as [Spectrum staff]

Bintang Tamu

Joo In Ae

Bintang Tamu

Jung Ji Woo

Sutradara

Han Ji Wan

Screenwriter