Pemeran Wild Sing

Kang Dong Won (강동원)

as Hwang Hyeon U

Pemeran Utama

Um Tae Goo

as Koo Sang Gu

Pemeran Utama

Park Ji Hyun (박지현)

as Byeon Do Mi

Pemeran Utama

Oh Jung Se

as Choi Seong Gon [Ballad singer]

Pemeran Pembantu

Hyeon Seo Ri

as Lee Jin [Fin.K.L member / Na Yeon's cousin]

Pemeran Pembantu

Park Jung Won

as Writer Yang

Bintang Tamu

Ahn Hyun Ho

as Officer Do

Bintang Tamu

Kang Ki Young (강기영)

as Na Tae Pung [Megaton's former member]

Bintang Tamu

Choi Dong Goo

as Min Sik [Triangle's manager]

Bintang Tamu

Park Hae Mi

as [Do Mi's mother-in-law]

Bintang Tamu

Han Kyung Rok

as [Punk rock singer]

Bintang Tamu

RALRAL

as [Music show host]

Bintang Tamu

Park Sung Hyun

as [Truck driver]

Bintang Tamu

Son Jae Gon

Sutradara

Kim Sung Hwan

Executive Producer

Lee Jong Seok

Producer

Jung Soon Won

as PD O

Cameo

Kim Ki Cheon

as President Ko

Cameo

Yang Hyun Min

as Sergeant Kang

Cameo

Shin Ha Kyun (신하균)

as Park Yong Gu [CEO]

Cameo

Heo Jun Seok

as Kong Ji Tae [Variety show PD]

Cameo

Gong Myoung (공명)

as [Hyeon U's radio program guest]

Cameo