Recurring Guest Characters Yoon Tae Young 16 guest appearances Jo Hee Kyung 16 guest appearances Investigator Oh 16 guest appearances Jung Ki Joon 16 guest appearances Choi Tae Ho 16 guest appearances Ha Ji Ah 16 guest appearances Hwang Jae Gook 15 guest appearances Jang Do Pal 14 guest appearances Tae Ho Hang 14 guest appearances Jo Sung Gook 14 guest appearances Bong Hee's Mother 11 guest appearances Yoon So Hee 9 guest appearances Im Byung Joo 9 guest appearances Shin Jae Hyun 7 guest appearances Lee Yul 7 guest appearances Kim Ki Hwan 5 guest appearances Lee Jae Joon 5 guest appearances First Officer 4 guest appearances Captain 3 guest appearances Ji Ah's Mother 2 guest appearances ⇤ « 1 2 » ⇥