Chief Producer
Director
Screenwriter
Main Role
- Ji Sung Main Role
- Hwang Jung Eum Main Role
- Park Seo JoonOh Ri On [Ri Jin's brother]Main Role
- Kim Yoo Ri Main Role
- Oh Min SukCha Gi JoonMain Role
Support Role
- Kim Young AeSeo Tae Im [Do Hyun's grandmother]Support Role
- Shim Hye JinSin Hwa Ran [Do Hyeon's mother]Support Role
- Kim Yong GunCha Geon Ho [Do Hyun's dead grandfather]Support Role
- Ahn Nae SangCha Joon Pyo [Cha Do Hyun's father]Support Role
- Myung Se BinMin Seo Yun [Jun Pyo's dead wife]Support Role
- Ko Chang SeokDr. Seok Ho PilSupport Role
- Choi Won YoungSecretary Ahn KookSupport Role
- Kim Hee JungJi Sun Yeong [Ri Jin's mother]Support Role
- Park Jun GyuOh Dae Oh [Ri Jin's father]Support Role
- Kim Na WoonYoon Ja Kyung [Ki Joon's mother]Support Role
- Kim Il WooCha Young Pyo [Ki Joon's father]Support Role
- Kim Hyun JooBaek Jin Sook [Chae Yun's mother]Support Role
- Baek Chul MinAlexSupport Role
- Kim Hyung BeomSection chief ChoiSupport Role
- Lee Doo Suk[Employee]Support Role
- Jo Chang GeunDr. Kang In GyuSupport Role
- Kang Bong SungShin Sun JoSupport Role
- Choi Hyo EunJoo Mi RaSupport Role
- Ha Kyung Min Support Role
- Park Geon Rak Support Role
- Kang Soo JinLee Young SunSupport Role
- Lee Do HyunCha Do Hyun [Young]Support Role
- Kim Ye JunOh Ri On [Young]Support Role
- Kim Min GyulOh Ri Jin [Young]Support Role
Guest Role
- Kan Mi Youn[Se Ki's girlfriend] (Ep. 1)Guest Role
- Jung Eun Pyo[Psychiatrist who was afraid of a patient] (Ep. 1)Guest Role
- Woo Hyun[Mental patient] (Ep. 1)Guest Role
- Gu Jun Yeop[DJ at the club] (Ep. 1)Guest Role
- Yoon JooJennifer (Ep. 1)Guest Role
- Matthew Douma[Guy beating a girl in America] (Ep. 1)Guest Role
- Kim Seul GiHeo Sook Hee [Megalomaniac] (Ep. 1-4)Guest Role
- Heo Ji Woong[Editor-in-chief of publishing house] (Ep. 7-8, 10)Guest Role
- Seo Yi AhnHong Ji Sun [Do Hyun's blind date] (Ep. 8)Guest Role
- Park Seul Ki[MC at the idol event] (Ep. 8)Guest Role
- Jung Hae WonJ.I. ["Rocking" idol group leader] (Ep. 8, 11-12)Guest Role
- Ahn Young Mi[Fortuneteller] (Ep. 13)Guest Role
- Kwon Yu Ri[Omega writer fan] (Ep. 20)Guest Role
- Lee Si EonDr. Park Min JaeGuest Role
- Han Ji Sun[Blind date woman]Guest Role
- Sung Chan Ho[Company shareholder]Guest Role
- Geum Bo[Sponsor]Guest Role
- Carson Allen[Cha Do Hyun‘s high school classmate]Guest Role
- Kang Dong Yup Guest Role
- Jo Yoon Ho[Reckless driver]Guest Role
- Park Won Ho Guest Role
- Seol Chang Hee Guest Role
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