Returning Student: Straight-A, but F in Love

Kim Min Kyo

as Kim Min Kyo

Pemeran Pembantu

Jung Yi Rang

as Jung Yi Rang

Pemeran Pembantu

Kim Sun Woo

Pemeran Pembantu

Park Chul Min

as [Professor] (Ep. 1)

Bintang Tamu

Min Ka Rin

as [Hyuk Soo's first love] (Ep. 1, 4)

Bintang Tamu

Ahn Young Mi

as (Ep. 2)

Bintang Tamu

Zico

as [Man on blind date] (Ep. 3)

Bintang Tamu

Lee Jong Hyuk

as (Ep. 4)

Bintang Tamu

Kim Kyung Wook

as [Pension President] (Ep. 7)

Bintang Tamu