Brain

Shin Ha-kyun

as

Lee Kang-hoon

Choi Jung-won

as

Yoon Ji-hye

Cho Dong-hyuk

as

Seo Joon-suk

Jung Jin-young

as

Kim Sang-chul

Claudia Kim

as

Jang Yoo-jin

Shim Hyung-tak

as

Jo Dae-shik

Kim Ga-eun

as

Lee Ha-young

Im Ji-eun

as

Hong Eun-sook

Ban Hyo-jung

as

Hwang Young-sun

Kwon Yul

as

Yeo Bong-gu

Song Ok-suk

as

Kim Soon-im

Yeseo

as

Choi Roo Bi

Lee Hyun-woo

as

Park Dong-Hwa

Kim Yeong-ok

as

Sa Bong-Ja