Hidden Face

Song Seung-heon

as

Seong-jin

Cho Yeo-jeong

as

Su-yeon

Park Ji-hyun

as

Mi-joo

Park Ji-young

as

Hye-yeon

Park Seong-geun

as

Office manager

Cha Mi-kyeong

as

Seong-jin's mo...

Byun Joong-hee

as

Ms. Park

Park Young-jun

as

Deputy concert...

Joo Ye-rin

as

Su-yeon's frie...

이소영

as

Su-yeon's frie...

Koh Na-young

as

Su-yeon's frie...

손은호

as

Su-yeon's frie...

Yoon Se-woong

as

Plumber

Seo Moon-ho

as

Detective

Sim Woo-sung

as

Detective

Oh Nu-ri

as

Orchestra empl...

Lee Moon-bin

as

Chef

손주환

as

Driver

신재영

as

Old woman

Kim Yu-na

as

Eun-bi