Kim Soo Hyun
Do Min Jun
Papel Principal
Jun Ji Hyun
Cheon Song I
Papel Principal
Park Hae Jin
Lee Hui Kyung
Papel Principal
Yoo In Na
Yoo Se Mi
Papel Principal

Shin Sung Rok
Lee Jae Gyeong [Hui Gyeong's older brother]
Papel Secundário
Kim Chang Wan
Jang Yeong Mok [Min Jun's friend]
Papel Secundário
Na Young Hee
Yang Mi Yeon [Song I's mother]
Papel Secundário
Ahn Jae Hyun
Cheon Yun Jae [Song I's younger brother]
Papel Secundário
Uhm Hyo Sub
Cheon Min Gu [Song I's father]
Papel Secundário
Oh Sang Jin
Yoo Seok [Prosecutor / Se Mi's older brother]
Papel Secundário
Kim Hee Won
Park Byeong Hui [Detective]
Papel Secundário
Kim Kang Hyun
Yun Beom [Song I's manager]
Papel Secundário
Kim Bo Mi
Min A [Song I's stylist]
Papel Secundário
Jo Hee Bong
An Dong Min [CEO of Song Yi's management agency]
Papel Secundário
Hong Jin Kyung
Hong Hye In / Hong Bok Ja [Song I's high school classmate]
Papel Secundário
Lee Jung Gil
Lee Beom Jung [Hui Gyeong's father]
Papel Secundário
Sung Byung Sook
Hong Eun A [Hui Gyeong's mother]
Papel Secundário
Lee Il Hwa
Han Sun Yeong [Se Mi's mother]
Papel Secundário
Lee Yi Kyung
Lee Sin [Jae Gyeong's secretary]
Papel Secundário
Kim Hyun Soo
Cheon Song I [Young] / Seo I Hwa
Papel Secundário
Yoo In Young
Han Yu Ra
Papel Secundário
Jo Seung Hyun
Lee Hui Gyeong [Young]
Papel Secundário
Jo Se Ho
Cheol Su
Papel Secundário
Nam Chang Hee
Hyeok
Papel Secundário
Han Eun Sun
[Song I's makeup artist]
Papel Secundário

Jung Ji Soon
Manager Moon [Se Mi's manager] (Ep. 1, 4)
Convidado
Chuk Jae Hee
[Min Jun's colleague] (Ep. 1, 4, 9)
Convidado
Choi Dae Sung
[Min Jun's colleague] (Ep. 1, 4, 9)
Convidado
Jang Sung Bum
[Production crew] (Ep. 1, 5-7)
Convidado
Yoo Joon Sang
Section Chief Yoo (Ep. 2-3)
Convidado
Serri
[Junior actress] (Ep. 3)
Convidado
Yoo Jang Young
[Doctor] (Ep. 3)
Convidado
Kim Hye Won
Yoo Se Mi [Young] (Ep. 3, 6, 8)
Convidado
Park Jung Ah
No Seo Yeong [Bride] (Ep. 4)
Convidado
Jang Hang Joon
Park Min Gyu [Director] (Ep. 4)
Convidado
Son Eun Seo
Hwang Jin I [Gisaeng] (Ep. 4)
Convidado
Lee Geum Ju
[I Hwa's mother] (Ep. 4-5)
Convidado
Jin Hyun Kwang
Kim Hyeok Su [Daehan Daily reporter] (Ep. 4-6)
Convidado
Choi Min
[Detective] (Ep. 5)
Convidado
Kim Soo Ro
Lee Hyeong Uk (Ep. 5)
Convidado
Han Seo Yeon
Han Yu Seon [Yu Ra's sister] (Ep. 5, 10)
Convidado
Kim Hyo Myung
[Gas station guy] (Ep. 6)
Convidado
Choi Woong
[Han Yu Ra's fan] (Ep. 7)
Convidado
Kim Tae Young
[Song I's doctor] (Ep. 8)
Convidado
Kim Yoon Tae
[Interrogation detective] (Ep. 7-8)
Convidado
Kim Hae In
Yang Min Ju [Jae Gyeong's ex-wife] (Ep. 7, 17-19)
Convidado
Jeon Jin Seo
Cheon Yun Jae [Young] (Ep. 9)
Convidado
Park Young Gyu
[Doctor in Joseon era] (Ep. 11)
Convidado
Jung Eun Pyo
Yun Seong Dong [Joseon realtor](Ep.6) / Yoon Sung Dong's descendant [Realtor] (Ep. 12)
Convidado
Lee Ja Min
[Nurse in mental hospital] (Ep. 14, 17)
Convidado
Jo Seung Yun
Kim Geun Su [Assistant prosecutor general] (Ep. 16)
Convidado
Bae Suzy
Ko Hye Mi [Min Jun's student] (Ep. 17)
Convidado
Yeon Woo Jin
Lee Han Gyeong [Hui Gyeong's eldest brother] (Ep. 18)
Convidado
Ryu Seung Ryong
Heo Gyun [Joseon poet] (Ep. 19)
Convidado
Yang Joo Ho
Wang Jae Su (Ep. 20)
Convidado
Sandara Park
[Actress] (Ep. 21)
Convidado
Kim Won Joon
[Actor] (Ep. 21)
Convidado
Song Tao
Zhang Ti Wei
Convidado
Yoon Chae Eun
Ye Dam
Convidado
Jo Woo Jin
[Heo Jun's assistant in Joseon era]
Convidado
Kim Kyul
[Doctor of emergency room]
Convidado
Jung Myung Joon
[Laments about getting old]
Convidado
Kim Sung Ho
[Cinematographer]
Convidado
Choi Hyo Eun
Hyo Na
Convidado
Ji Sang Hyeok Convidado