Pemeran The Sound of Magic

Ji Chang Wook (지창욱)

as Ri Eul

Pemeran Utama

Choi Sung Eun

as Yun A I

Pemeran Utama

Hwang In Youp (황인엽)

as Na Il Deung

Pemeran Utama

Im Ki Hong

as [Homeroom teacher]

Pemeran Pembantu

Park Ha Na

as Min Ji Su

Pemeran Pembantu

Hwang Se Hee

as Lee Na Yeong

Pemeran Pembantu

Oh So Hyun

as Seo Ha Yun [A I and Il Deung's classmate]

Pemeran Pembantu

Ji Hye Won

as Baek Ha Na [A I and Il Deung's classmate]

Pemeran Pembantu

Hong Jung Min

as Yun Yu I [A I's younger sister]

Pemeran Pembantu

Kim Bo Yun

as Kim So Hui [A I and Il Deung's classmate]

Pemeran Pembantu

Joo Ye Rim

as Yun A I [Young] (Ep. 1, 3-4, 6)

Bintang Tamu

Yoon Kyung Ho (윤경호)

as Kim Du Sik [Convenience store owner] (Ep. 1, 5-6)

Bintang Tamu

Lee Sang Hwa

as [Loanshark] (Ep. 2)

Bintang Tamu

Yoo Sang Hoon

as [Loanshark enforcer] (Ep. 2)

Bintang Tamu

Park No Kyeong

as [Loanshark enforcer] (Ep. 2)

Bintang Tamu

Ryu Kyung Soo

as [Convenience store part-timer] (Ep. 2)

Bintang Tamu

Choi Young Joon

as Detective Kim (Ep. 3, 5-6)

Bintang Tamu

Kim Ba Da

as Sergeant Park [Detective] (Ep. 3, 6)

Bintang Tamu

Kang Moon Kyung

as [Principal] (Ep. 4)

Bintang Tamu

Choi Seung Hoon

as Na Il Deung [Young] (Ep. 5)

Bintang Tamu

Kim Jin

as [Jogger] (Ep. 5)

Bintang Tamu

Lee Seung Jun

as [Teacher] (Ep. 5)

Bintang Tamu

Park Da On

as [Spectator] (Ep. 5)

Bintang Tamu

Yoo Chae Yeon

as [Spectator] (Ep. 5)

Bintang Tamu

Jung Ah Young

as [Spectator] (Ep. 5)

Bintang Tamu

Kim Kyu Na

as [Spectator] (Ep. 5)

Bintang Tamu

Park Seung Tae

as [Mugging victim] (Ep. 5)

Bintang Tamu

Hong Seo Hee

as Min Ji Su [Young] (Ep. 6)

Bintang Tamu

Nam Da Reum (남다름)

as Ri Eul / Ryu Min Hyeok [Teen] (Ep. 6)

Bintang Tamu

Kim Yeon Woo

as [Student] (Ep. 6)

Bintang Tamu

Lee Suk Hyeong

as [Student] (Ep. 6)

Bintang Tamu

Lee Dong Gyu (이동규)

as [Reporter] (Ep. 6)

Bintang Tamu

Jo Si Yeon

as [Birthday girl] (Ep. 6)

Bintang Tamu

Jun Joon Woo

as [Police officer] (Ep. 6)

Bintang Tamu

Lee Ki Seop

as [Forensics investigator] (Ep. 6)

Bintang Tamu

Lee Ki Sub

as [Forensics investigator] (Ep. 6)

Bintang Tamu

Ko Ha Eun

as Ko Ha Eun

Bintang Tamu

Lee Jae Hak

as [Student]

Bintang Tamu

Jung Se Hyun

as [Student]

Bintang Tamu

Kim Kyung Min

as [Student]

Bintang Tamu

Choi Ha Won

as [Student]

Bintang Tamu

Yoon Sa Bong

as [A I's landlord] (Ep. 1)

Bintang Tamu

Jo Han Chul

as [A I's father] (Ep. 1, 4)

Bintang Tamu

Yoo Chea Myung

as Na Ji Man [Il Deung's father] (Ep. 2-3, 5)

Bintang Tamu

Kim Hye Eun

as Mrs. Na [Il Deung's mother] (Ep. 2, 4-5)

Bintang Tamu

Go Ae Ri

as [A I's mother] (Ep. 3)

Bintang Tamu

Woo Mi Hwa

as [Ha Yun's mother] (Ep. 6)

Bintang Tamu

Cho Sang Kyung

Costume Designer

Kim Seong Yoon

Sutradara

Ha Il Kwon

Original Creator

Kim Min Jeong

Screenwriter

Seo Ji An

as [Student #1]

Bit part