My Secret Terrius

Synopsis

Cast

Main

• So Ji-sub as Kim Bon
• Jung In-sun as Go Ae-rin
• Son Ho-jun as Jin Young-tae
• Im Se-mi as Yoo Ji-yeon

  Supporting

NIS agent

• Um Hyo-sup as Shim Woo-cheol
• Seo Yi-sook as Kwon Yeong-sil
• Kim Sung-joo as Ra Do-woo/

  KIS agent

• Kim Yeo-jin as Shim Eun-ha
• Jung Si-ah as Bong Sun-mi
• Kang Ki-young as Kim Sang-ryeol

  Others

• Yang Dong-geun as Cha Jung-il
• Park Ji-hyun as Clara Choi
• Kim Gun-woo as Cha Jun-soo
• Ok Ye-rin as Cha Joon-hee
• Hwang Ji-ah as Jo Seo-hyun
• Lee Joo-won as Jo Seung-hyun
• Kim Dan-woo as Han Yoo-ra
• Oh Han-kyul as Kim Seung-gi
• Jasper Cho as K
• Lee Hyun-geol as Park Soo-il
• Kim Byeong-ok as Yoon Choon-sang
• Park Soon-cheon as Lee Ji-sook
• Mirosław Zbrojewicz as a following spy

  Special appearance

• Kim Myung-soo as Moon Sung-soo
• Nam Gyu-ri as Choi Eun-kyung
• Yoon Sang-hyun as Yoo Ji-sub

  Production

• Lee Yoo-young and Yoo In-na were offered the female lead role but declined.
• First script reading took place late June, 2018 at MBC Broadcasting Station in Sangam, South Korea.

  Original soundtrack

Part 1

Part 2

Part 3

Part 4

Part 5

Part 6

Ratings

• In the table below, represent the lowest ratings and represent the highest ratings.
• N/A denotes that the rating is not known.

  Awards and nominations

International broadcast

• Singapore, Malaysia, Indonesia and Hong Kong - the series aired on Oh!K on September 27, 2018, Within 24 Hours Telecast in Korea. Plus, Also Available On Viu on Same Day.
• Philippines - the series aired on ABS-CBN's The First and True Home of Asianovelas programming block under the title Code Name: Terrius from September 30 to November 15, 2019.
• In India, the show is currently streaming in Hindi on ZEE5 app for free.