Main •
Ji Hyun-woo as Seo Jung-won (37 years old) • • •
Park Han-byul as Yoon Ma-ri (37 years old) •
Ryu Soo-young as Kang In-wook (38 years old) •
Wang Bit-na as Joo Hae-ra (37 years old)
Supporting People around Jung-won •
Moon Hee-kyung as Lim Yeon-hwa (64 years old) :Jung-won's mother. She used to be a doctor.
Seo & Ha Plastic Surgery •
Go Joo-won as Ha Seong-ho (37 years old) :Director of Seo & Ha Plastic Surgery. Jung-won's friend and rival. • Hwang Jung-in as Park Na-yeon (28 years old) :She's a nurse. • Park Sang-shin as Kim Bong-woo (34 years old) :He's an anesthesiologist.
People around Ma-ri • Kim Yeong-ryeong as Lee Kyung-hee (60 years old) :Ma-ri's mother. • Kim Yun-joo as Choi Woo-sun (32 years old) :Mari's friend. She works at an Art Academy.
People around In-wook • Jeong Won-jung as Gang Il-guk (66 years old) :In-wook's father. He's the president of Geonha Group. • Kook Jung-sook as Moon Hye-sook (52 years old) :In-wook's stepmother. • Jung Sung-hoon as Kang In-sang (17 years old) :In-wook's half-brother. • Kang Sung-wook as Kim Secretary (29 years old) :In-wook's secretary. •
Go Woo-ri as Oh Cheol-young (32 years old) :Former detective employed by In-wook.
People around Hae-ra • Heo Eun-jeong as Eun Jung (22 years old) :She works at the Gyeong Gallery.
Special appearances •
Park Ha-na as former Yoon Ma-ri • Kim Beop-rae as Divorce Lawyer (Ep.36) ==Production==