BAD GUY

# Kim Nam Gil as Shim Gun Wook

* Kang Soo Han as Gun Wook (child)

# Han Ga In as Moon Jae In
# Kim Jae Wook as Hong Tae Sung

* Park Joon Mok as Tae Sung (child)

# Oh Yun Soo as Hong Tae Ra

* Moon Ga Young as Tae Ra (teen)