Hwang Jung-min ( 황정민 )

Kang-mu

Yum Jung-ah ( 염정아 )

Mi-seon

Jeon Hye-jin ( 전혜진 )

Hee-ju

Jeong Man-sik ( 정만식 )

Sang-ung

Kim Chan-hyung ( 김찬형 )

Jeong-rok

Kim Ju-hun ( 김주헌 )

Jung-san

Cha Rae-hyung ( 차래형 )

Hun-ki

Lee Ho-cheol ( 이호철 )

Dong-su

Kim Jun-han ( 김준한 )

Geum-seok

Ok Ja-yeon ( 옥자연 )

Baek Seon-u

Lee Hwang-eui ( 이황의 )

Gray-haired Man

Kim Byeong-ok ( 김병옥 )

Lee Go-an

Kim Kyu-baek ( 김규백 )

Lee Go-dong

Jeong Ui-gap ( Jeong Ui-gap )

Section chief

Ryu Sung-hyun ( Ryu Sung-hyun )

The Defense Counterintelligence commander

Yoon Dae-yeul ( Yoon Dae-yeul )

Ma Chang-gi

Park So-ri ( Park So-ri )

Teacher

Jang Ha-sung ( 장하성 )

Dong-hyeok

Lee Ga-kyung ( Lee Ga-kyung )

Dong-hyeok's mother

Jonathan Thona Yiombi ( 조나단 토나 욤비 )

Jonathan

Cheon Jae-hong ( 천재홍 )

Han Woo-yeol ( Han Woo-yeol )

Park Tae-san ( Park Tae-san )

Song Chi-hoon ( Song Chi-hoon )

Kim Yoon-bae ( Kim Yoon-bae )

Jang Ui-don ( 장의돈 )