My Secret Terrius

Composer

• 
  Jung Se Rin

Director

• 
  Park Sang Hoon
• 
  Park Sang Woo

Screenwriter

• 
  Oh Ji Young

Main Role

• 
  So Ji Sub

  Kim Bon / Wang Jung Nam / "Terius"

  Main Role
• 
  Jung In Sun

  Ko Ae Rin

  Main Role
• 
  Son Ho Jun

  Jin Yong Tae / Jung In Su

  Main Role
• 
  Im Se Mi

  Yoo Ji Yeon

  Main Role

Support Role

• 
  Kim Geon U

  Cha Jun Su [Ae Rin's son]

  Support Role
• 
  Ok Ye Rin

  Cha Jun Hui [Ae Rin's daughter]

  Support Role
• 
  Kim Yeo Jin

  Sim Eun Ha [KIS]

  Support Role
• 
  Jung Shi Ah

  Bong Seon Mi [KIS]

  Support Role
• 
  Kang Ki Young

  Kim Sang Ryeol [KIS]

  Support Role
• 
  Hwang Ji Ah

  Cho Seo Hyeon [Eun Ha's daughter]

  Support Role
• 
  Lee Joo Won

  Cho Seung Hyeon [Eun Ha's son]

  Support Role
• 
  Kim Dan Woo

  Han Yu Ra [Seon Mi's daughter]

  Support Role
• 
  Park Si Won

  Kim Seung Gi [Sang Ryeol's son]

  Support Role
• 
  Kim Sung Joo

  Ra Do U [NIS genius hacker]

  Support Role
• 
  Um Hyo Sup

  Sim U Cheol [Dir. NIS]

  Support Role
• 
  Seo Yi Sook

  Kwon Yeong Sil / Kim Tae Hui [NIS deputy director]

  Support Role
• 
  Jasper Cho

  Steven Kim / "K" / "The Magician"

  Support Role
• 
  Lee Hyun Kul

  Park Su Il [Yong Tae's driver]

  Support Role
• 
  Kim Byung Ok

  Yoon Chun Sang

  Support Role
• 
  Jo Yi Hyun

  Min Jun

  Support Role
• 
  Choi Tae Hwan

  Kim Ji Hun [Kwon’s aide]

  Support Role
• 
  Jeon Soo Kyung

  An Da Jeong [Chief butler]

  Support Role
• 
  Shin Soo Jung

  [Min Jun's mother]

  Support Role
• 
  Choi Jung Hyun

  [NIS agent- Kwon’s team]

  Support Role
• 
  Lee Seung Woo

  [NIS agent- Kwon’s team]

  Support Role
• 
  Shin Sung Hwan

  [NIS agent- Kwon’s team]

  Support Role
• 
  Park Beom Gyoo

  [NIS agent- Kwon’s team]

  Support Role
• 
  Kim Ian

  [NIS agent- Kwon’s team]

  Support Role

Guest Role

• 
  Kim Ji Eun

  [Yong Tae's secretary] (Ep. 1)

  Guest Role
• 
  Lee Joon Hyuk

  [Shaman] (Ep. 11)

  Guest Role
• 
  Ok Joo Ri

  [Neighbour of Ae Rin's parents] (Ep. 24)

  Guest Role
• 
  Kim Jong Ho

  [Realtor] (Ep. 24)

  Guest Role
• 
  Nam Gyu Ri

  Choi Yun Gyeong [North Korean defector]

  Guest Role
• 
  Park Soon Chun

  Lee Ji Suk [Ae Rin’s mother]

  Guest Role
• 
  Kim Myung Soo

  Moon Seong Su [Head of National Security]

  Guest Role
• 
  Yang Dong Geun

  Cha Jeong Il [Ae Rin's husband]

  Guest Role
• 
  Park Ji Hyun

  Clara Choi

  Guest Role
• 
  Jo Sun Mook

  Yang Seung Hak [Minister]

  Guest Role
• 
  Im Byung Ki

  Jeon In Taek [Director]

  Guest Role
• 
  Park Geon Rak

  Park Do Hun [Team leader]

  Guest Role
• 
  Yoon Sang Hyun

  Doctor Yoo [Ji Yun's brother]

  Guest Role
• 
  Lee Ha Yul

  Jung In Su [Conman]

  Guest Role
• 
  Song Hoon

  [Director Moon’s funeral consultant]

  Guest Role
• 
  Jung Young Joo

  [Babysitter on cellphone] (Ep. 4)

  Guest Role
• 
  Kim Tae Wan

  [Director Jun’s aide]

  Guest Role
• 
  Lee Doo Suk

  [Director Moon’s aide]

  Guest Role
• 
  Lee Young Eun

  [Eun Ha's daughter]

  Guest Role
• 
  Kim Min Soo

  [Seon Mi’s husband]

  Guest Role
• 
  Park Seung Tae

  [Woman on elevator]

  Guest Role
• 
  Son San

  [Mommy Cop member]

  Guest Role
• 
  Kim Jin Ok

  [Mommy Cop member]

  Guest Role
• 
  Lee Ja Ryoung

  [MicroBioMed doctor]

  Guest Role
• 
  Jung Kyu Soo

  [Jung Il’s boss]

  Guest Role
• 
  Mirosław Zbrojewicz

  [Following spy]

  Guest Role
• 
  Ha Do Kwon

  [Private investigator]

  Guest Role
• 
  Jun Eun Mi

  [Saw fight on street]

  Guest Role
• 
  Dong Yoon Seok

  [Apartment CCTV official]

  Guest Role
• 
  Na Seok Min

  [Tactical agent]

  Guest Role
• 
  Kim Chae Hyun

  [Young mother]

  Guest Role
• 
  Kim Mi Hye

  [Interviewee for Chun Sang's home staff]

  Guest Role
• 
  Han Soo Ho

  [Secret agent and terrorist]

  Guest Role
• 
  O Gyu Taek

  [Man fighting in police station]

  Guest Role
• 
  Myung Seok Geun

  [Man fighting at the police station]

  Guest Role
• 
  Andreas Fronk

  [Mercenary]

  Guest Role
• 
  Park Jeong Min

  [Doctor]

  Guest Role
• 
  Choi Gyo Shik Guest Role
• 
  Lee A Ra Guest Role
• 
  Lee Seung Yong Guest Role
• 
  Shin Hee Gook Guest Role
• 
  Park Jae Won Guest Role
• 
  Lee Min Jae Guest Role
• 
  Park Ung Sun Guest Role

Unknown

• 
  Jin Shi Won Unknown
• 
  Jeong Ye Dam Unknown
• 
  Kim Hye Ran Unknown