Hai Thế Giới

Kim Eui Sung

O Seong Mu [Yeon Ju's father]

Lee Tae Hwan

Seo Do Yun [Kang Cheol's bodyguard]

Jung Eugene

Yun Su Hui [Kang Cheol's secretary]

Lee Si Eon

Park Su Bong [Seong Mu's subordinate]

Kang Ki Young

Kang Seok Beom [Yeon Ju's co-worker]

Heo Jung Do

Park Min Su [Yeon Ju's boss]

Park Won Sang

Han Cheol Ho [Prosecutor / Kang Cheol's rival]

Cha Kwang Soo

Son Hyeon Seok [Kang Cheol's boss]

Lee Se Rang

Kil Su Yeong [Yeon Ju's aunt]

Nam Gi Ae

Kil Su Seon [Yeon Ju's mother]

Ryu Hye Rin

Seon Mi [Seong Mu's subordinate]

Park Sung Taek

Detective Park

Yang Hye Ji

Yun Hui [Seong Mu's subordinate]

Lee Chae Kyung

Nurse Jung