Uhm Jung-hwa as Min-joon

Daniel Henney as Robin Heiden

Bang Joong-Hyun as Joon-hyung

Lee Sung-min as Director Yang

Ok Ji-young as Yoon-mi

Baek Do-bin as Assistant Section Chief Hong

Park Hyun-young as Sun-young

Kim Ki-hyeon as Min-joon's Father

Oh Mi-yeon as Min-joon's Mother

Holly Karrol Clark as Jennifer Cohen

Jang So-yeon as Female Employee

Lee Hwa-sun as Mi-hwa

Lee Gap-seon as Na Jin-guk

Won Woo as Byeong-tae

Yōsuke Natsuki as Mitsuyoshi