Koo Kyo-hwan
Shin Pa-rang
Lee Sang-hee
Choi Hyun
Cha Soo-yeon
Choi Soo-jin
Jung Young-ki
Hwang Seung-yeol
Jang Seo-kyung
Lee Seul-gi
Woo Ji-hyeon
Kim Jung-bin
Lee Joon-Young
Sung-hoon
Nam Myung-ryeol
Manager Android
Son Min-seok
Section Chief Android
Kim Seung-hoon
Team Leader Android
Lee Young-suk
Shin Pa-rang's father
Yoon Soon-shim
Shin Pa-rang's mother
Lee Jae-hui
Shin Pa-rang's landlady
Kim Hyun
Lee Seul-gi's mother
Kang Jin-ah
Teaching Assistant