Pemeran Still 17

Shin Hae Sun (신혜선)

as Woo Seo Ri

Pemeran Utama

Yang Se Jong (양세종)

as Gong Woo Jin

Pemeran Utama

Ahn Hyo Seop (안효섭)

as Yoo Chan

Pemeran Utama

Ye Ji Won

as Jennifer / Hwang Mi Jung [Mysterious housekeeper]

Pemeran Utama

Wang Ji Won

as Kim Tae Rin [Violinist, music director]

Pemeran Pembantu

Yoon Sun Woo

as Kim Hyung Tae [Neurology resident]

Pemeran Pembantu

Yoon Chan Young (윤찬영)

as Kong U Jin [Young]

Pemeran Pembantu

Park Si Eun

as Woo Seo Ri [Young]

Pemeran Pembantu

Ahn Seung Gyun

as Jin Hyun [Design staff]

Pemeran Pembantu

Jo Hyun Sik

as Han Duk Soo

Pemeran Pembantu

Kim Min Sang

as Yoo Joong Seon [Psychologist]

Pemeran Pembantu

Jo Yoo Jung

as Lee Ri An [Taesan High, crush on Chan]

Pemeran Pembantu

Park Jong Hoon

as Shim Myung Hwan [Conductor, renowned violinist]

Pemeran Pembantu

Ha Do Kwon

as [Rowing crew coach]

Pemeran Pembantu

Won Mi Won

as [Woman in park] (Ep. 11, 13)

Bintang Tamu

Song Ji Hyun

as [Flower store employee] (Ep. 25-26)

Bintang Tamu

Shin Ji Yeon

as [Violin academy director]

Bintang Tamu

Kim Baek Ri

as [Nurse]

Bintang Tamu

Jin Yu Chan

as [Kid]

Bintang Tamu

Ju Ah Yeon

as [Part-time worker]

Bintang Tamu

Uhm Hye Soo

Bintang Tamu

Ahn Dong Yeob

Bintang Tamu

Sung Hyun Mi

as [Woman who calls from flyer]

Bintang Tamu

Heo Yeong Son

as [Intern]

Bintang Tamu

Mun Seong Nam

Composer

Jo Soo Won

Sutradara

Kim Young Hwan

Sutradara

Jo Sung Hee

Screenwriter

Joey Albright

as [Camper] (Ep. 1)

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Henny Savenije

as [German audition judge] (Ep. 1)

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Jung Shi Yool

as (Ep. 3)

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Lee Joon Hee

as [Design client] (Ep. 12)

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Lee Kyung Hoon

as [Boy on street] (Ep. 22)

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Wang Seok Hyun

as Kim Hyung Tae [Young]

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Jun Ik Ryoung

as Kim Hyun Jin [Seo Ri’s mother]

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Kwon Hyuk Soo

as CEO Park [Design client]

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Jung Jin Woon

as Jung Jin Woon [Chan’s rival]

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Son San

as [Nurse]

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Seo Yoon Ah

as CEO Kim [Design client]

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Park Seung Tae

as Woo Seo Ni [Woman in bar]

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Jung Ho Bin

as Byung Gyu Chul [Festival chairman]

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Kim Kwang Gyu

as [Violin repairman]

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Ji Dae Han

as [Precinct station police officer]

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Hong Ki Joon

as Kim Sang Shik [Truck driver]

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Seo Yun Hyuk

as Yoo Chan [Young]

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Baek Jae Jin

as [Stage design chief]

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Ri Min

as [Teacher at Taesan high school]

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Jung Kyung Cheon

as [Police precinct]

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Lee Jin Mok

as [Security guard at Columbarium]

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Jo Soo Ji

as Kim Tae Rin [Young]

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Seo Eun Yool

as Yoo Chan [Young]

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Kim Joo Ah

as [Shows Seo Ri the free food line]

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Kim Mi Hye

as [Nurse]

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Song Chang Gyu

as [Chicken restaurant owner]

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Ok Joo Ri

as [Cleaning lady at airport]

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Yoo Ok Joo

as [Nursing care worker]

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Lee Hyo Bi

as Woo Seo Ri [Young]

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Lee Yoo Jin

as [Jazz festival music crew]

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Kim Min Seo

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Moon Hak Jin

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Kim Do Ah

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