Park Hyung Seok (Small) (voice)
Park Hyung Seok (Big) (voice)
Lee Jin Seong / Park Jong Gun (voice)
Vasco / CEO / Lee Nam Su (voice)
Jin Ho Bin / Jang Gi Seok / Kim Mae Sik / Park Bum Jae (voice)
Pyun Deok Hwa / Lee Tae Sung / Oira (voice)
Park Ha Neul / Female Student / Female Extra (voice)
Park Ji Ho (voice)
Lee Hyun Do / Go Jeong Gi / Kim Seul Bum (voice)
Na Yu Eop / Park Han Gyul / Homeroom Teacher (voice)
Choi Soo Jeong / Deok Hwa's Grandmother / Female Student (voice)
Hyung Seok's Mom (voice)
