Mong-ta-joo Online

Uhm Junghwa - Ha-kyung (as Jeong-hwa Eom) , Kim Sang-kyung - Chung-ho, Young-chang Song - Han-chul, Hie-bong Jo - Detective Kang, Hae-Kyun Jung - Detective Choi, Seung-mok Yoo - Chief Detective Kwak, Dae-hwan Oh - Yong-sik, Jung-eun Heo - Bom (granddaughter), Ju-bong Gi - Sound Expert Han, Lee Joon-hyuk - Chief Detective Shin (as Joon Hyuk Lee) , Chul-Moo Kim - Big detective, Hyeok-soo Kwon - Police Station Chief, Sang-Hun Lee - Restaurant Owner (as Sang-hun Lee) , Cheol-min Park - Section Chief Koo, Tae Won-suk - Youngest Detective