My Girl and I— Full Cast

Song Hye-kyo

as Bae Soo-eun

Cha Tae-hyun

as Kim Soo-ho

Lee Soon-jae

as Kim Man-geum

Kim Hae-sook

as Soo-ho's Mother

Song Chang-eui

as Park Jong-goo

Moon Jeong-hee

as Soon-im

Park Hyo-joon

as Oh Sung-jin

Kim Shin-young

as Soo-ho's Sister

Lee Moon-se

as DJ

Kim Yun-seok

as Biology Teacher

Kang Bo-min

as Juliet