Main characters •
Son Ye-jin as Seo Woo-jin •
Ji Jin-hee as Oh Tae-suk •
Jo Yoon-hee as Cha Myung-eun •
Jin Goo as Lee Seon-chul
Supporting characters • Kim Jeong-wook as Seo Woo-hyeon •
Kim Bo-kyung as Lee Joo-hee •
Ahn Suk-hwan as Ahn Joong-seok • Lee Ki-yeol as Moon Jae-gook • Jeong Gyu-soo as Jeong Seong-il •
Lee Dae-yeon as Det. Go Byung-chun • Jeong Jin as Jang Jin-gyu • Im Seung-dae as Lee Choon-ki • Park Yong-gi as Director Lee Jae-myeong • Min Ah-ryung as Reporter Jung •
Park Yoon-jae as Yoon Seok-chang • Jeon In-taek as Woo-jin's father •
Geum Bo-ra as Woo-jin's mother •
Jung Hye-young as Kim Mi-hee (
cameo, episode 1) • Kim Cheol-ki as Mi-hee's husband • Shin Chae-won • Min Seo-hyun • Jeong Hoon • Choi Seung-kyung •
Kim Hyun-joong as SS501 member (cameo, episode 1) •
SS501 (
cameo) •
Ryu Ui-hyun ==Ratings==