Pemeran Secret: Untold Melody

Doh Kyung Soo (도경수)

as Kim Yu Jun

Pemeran Utama

Won Jin A

as Yoo Jeong A

Pemeran Utama

Shin Ye Eun (신예은)

as Park In Hui

Pemeran Utama

Bae Seong Woo

as Kim Seung Ho [Yu Jun's father]

Pemeran Pembantu

Im Sung Jae

as Go Tae

Pemeran Pembantu

Ahn Seung Gyun

as Kim Gyeong Bong

Pemeran Pembantu

Kang Kyung Hun

as Ha Yeon Seo [Yu Jun's mother]

Pemeran Pembantu

Kang Mal Geum

as Kang Min Suk [Jeong A's mother]

Pemeran Pembantu

Kim Wook

as Jae Sik

Pemeran Pembantu

Kong Hyun Ji

as [Conductor]

Pemeran Pembantu

Kim Gyu Seon

as [Professor of Western Music History]

Pemeran Pembantu

Yoo Seung Hee

Screenwriter

Seo Yoo Min

Screenwriter & Sutradara