...ing— Full Cast

Lim Soo-jung

as Gang Min-ah

Kim Rae-won

as Young-jae

Chang Yun

as Kyung-soo

Lee Mi-sook

as Kim Mi-sook

Kim In-mun

as Security Guard

Lee Yu-jeong

as Jin-young

Choi Deok-moon

as Ki-soo

Kim Ji-young

as Maid

Seo Young-ju

as Ballerina

Jeon Sang-jin

as Next Door Teacher

Melody Park

as Bookstore Clerk

Park Jun-seok

as Young-jae's Friend

Jang Hee-soo

as Yoo-jung

Kim Sung-mi

as Ballerina