Pemeran Dr. Frost

Song Chang Eui

as Dr. Frost

Pemeran Utama

Jung Eun Chae

as Yoon Sung Ah

Pemeran Utama

Lee Yoon Ji

as Professor Song Seon

Pemeran Pembantu

Sung Ji Ru

as Nam Tae Bong [Detective]

Pemeran Pembantu

Choi Jung Woo

as Cheon Sang Won (Dean of psychology department)

Pemeran Pembantu

Yoo Geon

as Bae Doo Han

Pemeran Pembantu

Seo Beom Seok

as Professor Baek

Pemeran Pembantu

Jung Kyung Ho

as Min Woo

Pemeran Pembantu

Lee Shi Kang

as Detective Cha

Pemeran Pembantu

Lee Shi Won

as Song Seol

Pemeran Pembantu

Song Jong Ho

as Moon Seong Hyeon

Pemeran Pembantu

Choi Soo Han

as Moon Seong Hyeon [Young]

Pemeran Pembantu

Kim Ga Young

as Da Rae

Pemeran Pembantu

Moo Jin Sung

as Kim Yeong Ho

Pemeran Pembantu

Lee Sun Goo

Pemeran Pembantu

Lee Yoo Jin

as Kim Wook

Pemeran Pembantu

Im Kang Sung

as Kim Jung Hoon

Pemeran Pembantu

Kim Gyu Seon

as Choi Yoo Kyung

Pemeran Pembantu

Park Dae Won

as No Jin Soo

Pemeran Pembantu

Ahn Ji Hye

as Ji Man

Pemeran Pembantu

Heo Dong Won

Pemeran Pembantu

Yoon Ra Young

as Lee Jeong Yeon

Pemeran Pembantu

Lee Hee Jin

as Yoo Anna / Sung Hye (Ep. 1)

Bintang Tamu

Lee Joon Hyuk

as (Ep. 1)

Bintang Tamu

Lee Hae Young

as Park Ki Wung [Yoo Anna's manager](Ep.1)

Bintang Tamu

Lee Byung Wook

as Professor (Ep.1)

Bintang Tamu

Yoon Jong Hoon

as Kang Jin Wook (Ep.2)

Bintang Tamu

Choi Il Hwa

as Kim Han Sung (Ep.2)

Bintang Tamu

Park Jung Hak

as [Pub manager] (Ep.2)

Bintang Tamu

Hwang Je Sung

as (Ep.3)

Bintang Tamu

Kwon Hae Sung

as Seo Hak Soo (Ep.3)

Bintang Tamu

Yoon Hye Kyung

as (Ep.3)

Bintang Tamu

Hong Sang Jin

as Goo Ji Seong (Ep.3)

Bintang Tamu

Kim Bup Rae

as (Ep.3)

Bintang Tamu

Park Hyo Bin

as Jin Sun Mi (Ep. 3)

Bintang Tamu

Jung Joo Ri

as (Ep.3)

Bintang Tamu

Joo Ah Reum

as Park Han Sol (Ep. 8)

Bintang Tamu

Jung Dong Gyu

as [Judge] (Ep.10)

Bintang Tamu

Seo Ei An

as Park In Yeong (Ep. 7)

Bintang Tamu

Kwon Ji Min

as [Jang Kyung Soo's granddaughter] (Ep.7)

Bintang Tamu

Park Soon Chun

as Seo Yoon Sook (Ep. 7)

Bintang Tamu

Lee Young Eun

as Park In Young (young) (Ep. 7)

Bintang Tamu

Jeon Hae Ryong

Bintang Tamu

Sung Yong Il

Sutradara

Lee Jong Beom

Original Creator