Pemeran Mimicus

Yoo Young Jae

as Han Yu Seong

Pemeran Utama

Jo Yu Ri

as O Ro Si

Pemeran Utama

Kim Yoon Woo

as Ji Su Bin

Pemeran Utama

Nana

as Sin Da Ra

Pemeran Utama

Oh Jae Woong

as Woo Jae Yeong

Pemeran Pembantu

Woo Ji Han

as Hyeon U

Pemeran Pembantu

Cha Yu Jin

as Han Ju Mi

Pemeran Pembantu

Lee Yoon Ji

as Lee Mi Yeon

Pemeran Pembantu

Kang Yu Chan

as Bang Yu Chan

Pemeran Pembantu

Lee Hyoung Hun

as Kang In Hyeok

Pemeran Pembantu

Jung Ji Woo

as Won Chae Na

Pemeran Pembantu

Kim Bum Jin

as Director Cho

Pemeran Pembantu

Jung Hyun Joon

as Han Yu Seong [Young]

Pemeran Pembantu

Yeo Ji Min

as O Ro Si [Young]

Pemeran Pembantu

Ki Eun Yoo

as Ji Su Bin [Young]

Pemeran Pembantu

Yang Ji Woo

as Hyeon U [Young]

Pemeran Pembantu

Hirokawa Mao

as (Ep. 1)

Bintang Tamu

Katsuno Rise

as (Ep. 1)

Bintang Tamu

Park Hae Yoon

as (Ep. 1)

Bintang Tamu

Park Sung Hoon

as [Himself] (Ep. 2)

Bintang Tamu

Kim Woo Seok

as [Himself] (Ep. 2-3, 9)

Bintang Tamu

Kim Soo Hyun

as Kim Su Hyeon [Daehan Arts High School 3rd year student] (Ep. 4)

Bintang Tamu

Jeon Woong

as Kim Min Geon [Daehan Arts High School student] (Ep. 5)

Bintang Tamu

Lee Jang Jun

as Lee Min Ho [Daehan Arts High School student] (Ep. 5)

Bintang Tamu

Woo Yeon

as (Ep. 9)

Bintang Tamu

Cha Gun

as Min Gi

Bintang Tamu

Park Jae Wan

as [Daehan Performing Arts High School principal]

Bintang Tamu

Ok Joo Ri

as [Housekeeper]

Bintang Tamu

Lee Ju Mi

as [Housekeeper]

Bintang Tamu

Han Soo Ji

Sutradara

Choi Sung Wook

Screenwriter

Jan Jin

Screenwriter