Director
Screenwriter
Main Role
- Lee Young AeCha Se EumMain Role
- Lee Moo SaengYoo Jeong JaeMain Role
- Kim Young JaeKim PilMain Role
Support Role
- Hwang Bo Reum ByeolLee Roo NaSupport Role
- Park Ho SanJeon Sang Do [CEO of Hangang Philharmonic]Support Role
- Yang Jun MoMa Yo Seop [Orchestra’s union leader]Support Role
- Lee Shi WonLee Ah Jin [Horn player]Support Role
- Kim Young AhLee Hye Jung [Se Eum's friend]Support Role
- Ye Soo JungBae Jung Hwa [Se Eum's mother]Support Role
- Kim Min KyuKim Tae Ho [Se Eum’s assistant]Support Role
- Lee Jung YeolPark Jae Man [Concertmaster]Support Role
- Kang Ji EunWoo Young Seon [Jung Hwa’s doctor]Support Role
- Im Se JuMiss Hwang [Jeon Sang Do's secretary]Support Role
- Jin Ho EunKim Bong Ju [Oboist]Support Role
- Choi Yoon SoGo Yu Ra [Jeong Jae’s ex-wife]Support Role
- Kim Hyun JunGo Han Gil [Jeong Jae’s friend]Support Role
- Jin So YeonKwon Soo Jin [Associate concertmaster]Support Role
- Seo Jung YeonHeo Young Mi [Violinist]Support Role
- Jung Sun AHa Young MiSupport Role
- Lee Byung JoonOh Hyun Seok [Assistant conductor]Support Role
- Jung Dong HwanCha Ki Baek [Se Eum’s father]Support Role
- Hwang GeonNo Ba Ha [Cellist]Support Role
- Han Jin HeeKang In Han [Violinist]Support Role
Guest Role
- Im Jung Ok[Park Jae Man’s wife] (Ep. 2)Guest Role
- Yu Seung Il[Director] (Ep. 3)Guest Role
- Park Seong Kyun[Director] (Ep. 3)Guest Role
- Lee Dong Kyu[KVN anchorman] (Ep. 3)Guest Role
- Min Eung Shik[Chancellor] (Ep. 3, 5)Guest Role
- Kwon Jae HwanAssemblyman Kim (Ep. 4)Guest Role
- Song Kyung A[OB-GYN] (Ep. 4)Guest Role
- Lee Eun Ju[Caregiver] (Ep. 4)Guest Role
- Lee Se Rang[Kim Bong Ju’s mom] (Ep. 5)Guest Role
- Kim Tae Moon[Deliveryman] (Ep. 6)Guest Role
- Yoon Bok SungLee Min Chan (Ep. 7)Guest Role
- Choi Ga In[Lawyer] (Ep. 7)Guest Role
- Kyung Ki Hyun[Nightclub employee] (Ep. 7)Guest Role
- Baek Do Gyum[Lawyer] (Ep. 8)Guest Role
- Kim Sang Wook[Director] (Ep. 8)Guest Role
- Lee Ji Young[CCTV security staff] (Ep. 8)Guest Role
- Yoon Byul HaLee Ru Na [Young] (Ep. 9)Guest Role
- Hwang Yun Seon[Cha Se Eum’s lawyer] (Ep. 9)Guest Role
- Ha Ji YoungKim Song Yi [Reporter] (Ep. 10)Guest Role
- Jang Jae Kwon[Doctor] (Ep. 10-11)Guest Role
- Choi Hyun Joon[Food science researcher] (Ep. 10)Guest Role
- Choi Soo GyunLee Hae NaGuest Role
- Baek Sung ChulChoo Dong SikGuest Role
- Woo Da ViCha Se Eum [Young]Guest Role
- Im Sung KyunYoo Jeong Jae [Young]Guest Role
- Bae Jae Seong[Lee Hae Na's boyfriend]Guest Role
- Shin Ha Jun[Pharmaceutical scientist] (Ep. 11)Guest Role
- Kim Joon HyungKang Cheol Su [Bodyguard] (Ep. 11)Guest Role
- Jun Eun Mi[Orphanage director] (Ep. 9, 11)Guest Role
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