Pemeran Something about 1%

Kang Dong Won (강동원)

as Lee Jae In

Pemeran Utama

Kim Jung Hwa

as Kim Da Hyeon

Pemeran Utama

Han Hye Jin

as Yoo Hyeon Jin

Pemeran Utama

Lee Byung Wook

as Min Tae Ha

Pemeran Utama

Kim Seung Min

as Kim Hyeong Jun

Pemeran Pembantu

Ji Sang Ryeol

as Lee Yong Ho [SH Emerald Hotel director]

Pemeran Pembantu

Choi Min Soo

as [SH Emerald Hotel]

Pemeran Pembantu

Shin Dong Mi

as Heo Yu Gyeong [SH Emerald Hotel]

Pemeran Pembantu

Kim Ji Woo

as Lee Jae Yeong [Jae In's sister]

Pemeran Pembantu

Byun Hee Bong

as Lee Gyu Cheol [Jae In's grandfather]

Pemeran Pembantu

Lee Hee Do

as Kim Dong Suk [Secretary - Hyeong Jun's father]

Pemeran Pembantu

Oh Mi Yun

as Yeom Seon Hui [Jae In's mother]

Pemeran Pembantu

Jun In Taek

as Min Hyeok Ju [Tae Ha's father]

Pemeran Pembantu

Kim Chung

as Lee Su Yeong [Tae Ha's mother]

Pemeran Pembantu

Choi Sang Hoon

as Kim Jin Man [Da Hyeon's father]

Pemeran Pembantu

Kim Young Ran

as Jung Mi Jung [Da Hyeon's mother]

Pemeran Pembantu

Kyung Joon

as Kim Seo Hyeon [Da Hyeon's older brother]

Pemeran Pembantu

Heo Jung Min

as Kim Jun Hyeon [Da Hyeon's younger brother]

Pemeran Pembantu

Im Ho

as Kang Seon U [Teacher - Da Hyeon's colleague]

Pemeran Pembantu

Wang Ji Hye

as Han Ju Hui [Jae Yeong's friend]

Pemeran Pembantu

Lee Jang Woo

as Kim Seo Hyeon [Young] (Ep. 3)

Bintang Tamu

Oh Eui Shik

as [Customer at restaurant] (Ep. 4)

Bintang Tamu

Jung Min Ah

as Kang Yu Jin

Bintang Tamu

Jung Han Hun

as [Publisher]

Bintang Tamu

Ha Yeo Jin

as [Actress]

Bintang Tamu

Kim Min Kyung

as Kang Hui Jin [Yu Jin's older sister]

Bintang Tamu

Kim Jin Yang

as [Hyeon Jin's mother]

Bintang Tamu

Jang Geun Su

Sutradara

Hyun Go Woon

Original Creator