The K2

Ji Chang-wook

as

Kim Je-Ha

Song Yun-ah

as

Choi Yoo-Jin

Yoona

as

Ko An-Na

Cho Seong-ha

as

Jang Se-Joon

Kim Kap-soo

as

Park Gwan-Soo

Lee Jung-jin

as

Choi Sung-Won

Son Tae-young

as

An-Na's Mother

Shin Dong-mi

as

Kim Dong-Mi

Park Geon-lak

as

Public Prosecu...

Lee Yea-eun

as

Jang Mi-Ran

Lee Jae-woo

as

Lee Sung-Kyu

Jeon Bae-soo

as

Joo Cheol-Ho

Song Gyeong-ch...

as

Song Young-Cho...

Park Soon-cheon

as

Sung Won's Mot...

Lee Cheol-min

as

Kwan Soo's Sec...

Ko In-beom

as

Kook Chae Wan

Lee Yoo Joo

as

Young Go An-Na

Yeom Hye-ran

as

An-Na's Housem...

Ju Seok-tae

as

Notary

Kim Bo-mi

as

Girl who took ...

Lee Han-wi

as

Blue House Chi...

Cho Dong-hyuk

as

JSS Special Di...

Shin Dong-hoon

as

Kim Ki Ja

Jung Ji-young

as

No Ji Yun

Yoon Jong-hwa

as

Kim Suk Han

Cho Jae-ryong

as

Secretary Sung

Joey Albright

as

Scott

Choi Seung-hoon

as

Young Kim Je-Ha

Lee Soon-won

as

JSS Bodyguard ...

Lee Won-jin

as

FD

Kim Hyun

as

Guide

Han Hye-ji

as

Reporter

Lee Seung-joon

as

Examiner

Lee Yoo-Soo

as

Detective

Jeong Se-hyeong

as

Detective

Yoo In-hyuk

as

Bodyguard

Yoon Joo Bin

as

Bodyguard

Lee Su-ryeon

as

Bodyguard

Kwon Soo-hyun

as

Bodyguard

Oh Sang-Hoon

as

Task Force Lea...

Kim Ik-tae

as

Fruit Ranch Fa...

Ji Tae Yang

as

Scarred Police...

Yoon Sung-woo

as

Young Je Ha's ...

Ham Jin Sung

as

Kwan Soo's Bod...

Son Dong-hwa

as

Reserve Forces...

So Hee-jung

as

JSS Chief Medi...

Sung Yi Un

Lee Se-mi

Park Geon

Jang Hae-song

Choi Won Yong

Anupam Tripathi

Chu Yeon-gyu

Yoo Joo Ran

Min Sang-woo

Hong Lu-hyeon

Park Eun-young

Kim Gyeong-ryo...

as

Lee Kyung Jin

Lee Sung-deuk