Jang Ki-yong

as Chae Do-Jin

32 episodes

Jin Ki-joo

as Han Jae-Yi

32 episodes

Huh Joon-ho

as Yoon Hee-Jae

32 episodes

Kim Kyung-nam

as Yoon Hyun-Moo

32 episodes

Seo Jeong-yeon

as Chae Ok-Hee

32 episodes

Choi Ri

as Chae So-Jin

32 episodes

Yoon Jong-hoon

as Gil Moo-Won

32 episodes

Kim Seo-hyung

as Park Hee-Young

32 episodes

Jeong In-gi

as Go Yi-Seok

32 episodes

Nam Da-reum

as Young Yoon Na-Moo

32 episodes

Ryu Han-bi

as Young Gil Nak-Won

32 episodes

Kim Sang-woo

as Young Yoon Hyun-Moo

32 episodes

Lee Ye-won

as Young Chae So-Jin

32 episodes

Lee Da-in

as Lee Yeon-Ji

32 episodes

Kwon Hyuk-soo

as Kim Jong-Hyun

32 episodes

Jung Yoo-ahn

as Young Gil Moo-Won

32 episodes

Park Soo-young

as Pyo Baek

32 episodes

Jung Da-hye

as Cheon Se-Kyung

32 episodes

Park Joo-mi

as Ji Hye-Won

32 episodes

Yoon Ji-hye

as Han Ji-Ho

32 episodes

Song Young-gyu

as Police University Professor

32 episodes

Park Kyung Chu

as Gil Sung Sik

32 episodes

Bae Hae-seon

as Jeon Yu-Ra

32 episodes

Kim Esther

as High School student

32 episodes

Joo Woo-jae

as Kang Yoon Sung

32 episodes