Pemeran A Thousand Days' Promise

Kim Rae Won (김래원)

as Park Ji Hyung

Pemeran Utama

Park Soo Ae

as Lee Seo Yun

Pemeran Utama

Lee Sang Woo

as Jang Jae Min

Pemeran Utama

Jung Yoo Mi

as Noh Hyang Gi

Pemeran Utama

Kim Hae Sook

as Kang Soo Jung

Pemeran Pembantu

Oh Mi Yun

as [Seo Yeon's aunt]

Pemeran Pembantu

Yoo Seung Bong

as [Seo Yeon's uncle]

Pemeran Pembantu

Kim Boo Sun

as [Seo Yeon's mom]

Pemeran Pembantu

Yang Han Yeol

as Cha Ji Min [Myung Hee's son]

Pemeran Pembantu

Oh Kyung Soo

as [Seo Yeon's boss]

Pemeran Pembantu

Park Yoo Hwan

as Lee Moon Kwon [Seo Yeon's brother]

Pemeran Pembantu

Lee Mi Sook

as Oh Hyun Ah [Hyang Gi's mom]

Pemeran Pembantu

Alex

as Son Suk Ho [Ji Hyung's partner]

Pemeran Pembantu

Im Chae Moo

as Park Chang Joo [Ji Hyung's father]

Pemeran Pembantu

Jung Joon

as Cha Dong Chul [Myung Hee's husband]

Pemeran Pembantu

Park Young Gyu

as Noh Hong Kil [Hyang Gi's father]

Pemeran Pembantu

Moon Jeong Hee

as Jang Myung Hee [Seo Yeon's cousin]

Pemeran Pembantu

Jang Hyun Sung

as Dr. Kim Hyun Min

Pemeran Pembantu

Kang Rae Yeon

as Kim Son Joo [Seo Yeon's subordinate]

Pemeran Pembantu

Park Ga Ryeong

as [Seo Yeon's subordinate]

Pemeran Pembantu

Han Bo Bae

as [Seo Yeon's subordinate]

Pemeran Pembantu

Lee Sang Woo

as Jang Jae Min

Pemeran Pembantu

Lee Sung Min (이성민)

as [Guy whose house Ji Hyung renovates] (Ep. 1)

Bintang Tamu

Go In Beom

as [Jae Min's neighbor] (Ep. 2)

Bintang Tamu

Jang Young Nam

as [Worker at Seo Yun's company] (Ep. 4)

Bintang Tamu

Song Chang Eui

as Noh Yeong Soo [Hyang Gi's older brother](Ep.15-18)

Bintang Tamu

Han So Young

as Ha In Yeong [Team Leader / Seo Yeon's co-worker](Ep.18)

Bintang Tamu

Kim Jin Woo

as Lee Moon Kwon [Young]

Bintang Tamu

Park Seo Yeon

as Lee Seo Yeon [Child]

Bintang Tamu

Seo Young Joo

as Lee Moon Kwon [Child]

Bintang Tamu

Jung Dong Gyu

as [Guy whose house Ji Hyung renovates](Ep.6)

Bintang Tamu

Choi Won Young (최원영)

as [Hyang Gi's blind date] (Ep. 18)

Bintang Tamu

Jung Suk Yong

Bintang Tamu

Oh Jung Won

Bintang Tamu

Jung Eul Young

Sutradara

Kim Soo Hyun

Screenwriter