Pemeran One Spring Night

Han Ji Min (한지민)

as Lee Jeong In

Pemeran Utama

Jung Hae In (정해인)

as Yoo Ji Ho

Pemeran Utama

Kim Jun Han (김준한)

as Kwon Gi Seok

Pemeran Utama

Im Sung Eon

as Lee Seo In [Jeong In's elder sister / News anchor]

Pemeran Pembantu

Joo Min Kyung

as Lee Jae In [Jeong In's younger sister]

Pemeran Pembantu

Song Seung Hwan

as Lee Tae Hak [Jeong In's father / High School principal]

Pemeran Pembantu

Kil Hae Yeon

as Sin Hyeong Seon [Jeong In's mother]

Pemeran Pembantu

Lee Moo Saeng

as Nam Si Hun [Seo In's husband / Dentist]

Pemeran Pembantu

Lee Sang Hee

as Song Yeong Ju [Jeong In's best friend]

Pemeran Pembantu

Yoon Seul

as O Ha Rin [Jeong In's colleague]

Pemeran Pembantu

Oh Man Seok

as Yoo Nam Su [Ji Ho's father / Launderette owner]

Pemeran Pembantu

Kim Jung Young

as Ko Suk Hui [Ji Ho's mother]

Pemeran Pembantu

Ha Yi An

as Yoo Eun U [Ji Ho's son]

Pemeran Pembantu

Seo Jung Yeon

as Wang Hye Jung [Ji Ho's colleague]

Pemeran Pembantu

Lee Yoo Jin

as Lee Ye Seul [Ji Ho's colleague]

Pemeran Pembantu

Lim Hyoun Soo

as Choi Hyeon Su [Ji Ho's friend]

Pemeran Pembantu

Lee Chang Hoon

as Park Yeong Jae [Ji Ho's friend]

Pemeran Pembantu

Kim Chang Wan

as Kwon Yeong Guk [Gi Seok's father / President of Swimming Foundation]

Pemeran Pembantu

Kim Soo Jin

as Librarian (Ep. 2)

Bintang Tamu

Kim Jong Tae

as [Seo In's boss] (Ep. 5, 8, 9, 12)

Bintang Tamu

Kim Hak Seon

as [Bar owner] (Ep. 20)

Bintang Tamu

Lee Ji Hyun

as [Lawyer] (Ep. 28)

Bintang Tamu

Jeon Seok Chan

as [Lawyer]

Bintang Tamu

Kim Song Il

as [Hyeon Su's friend]

Bintang Tamu

Lee Won Hee

as [Company colleague]

Bintang Tamu

Ahn Se Bin

as [Little girl in playground]

Bintang Tamu

Song Ha Hyun

as [Playground boy]

Bintang Tamu

Yoo Chae Yeon

as [Library girl]

Bintang Tamu

Jang Jae Ha

as [Library boy]

Bintang Tamu

Kim Yeon Seo

as [Restaurant girl]

Bintang Tamu

Choi Sun Woo

Bintang Tamu

Yun Seok Jo

Cinematography

Chae Jeong Seok

Cinematography

Lee Nam Yeon

Composer

Ahn Pan Seok

Sutradara

Kim Eun

Screenwriter