Dr. Champ

Kim So-yeon

as

Kim Yeon Woo

Uhm Tae-woong

as

Lee Do Wook

Jung Gyu-woon

as

Park Ji Heon

Cha Ye-ryun

as

Kang Hee Young

Don Lee

as

Oh Jung Dae

Kim Ga-eun

as

Pi Jung Ah

Kang So-ra

as

Kwon Yoo Ri

Lee Si-eon

as

Heo Taek Woo

Jung Suk-won

as

Yoo Sang-bong

Moon Hee-kyung

as

Go Mi-ja