Cast from The Regular Tardy Student
Kim Seung-ho
Jang Seong-hak
Hwang Jeong-sun
Mrs. Gwacheon
Heo Chang-kang
Hwang Hae-san
Kim Chil-seong
Chief Detective
Ju Seon-tae
Executive Director Ju
Dokgo Sung
Bae-yeong's Brother
Yum Hea-sook
Schoolmistress
Seok Un-a
English Teacher
Park Seung-jin
Judo Master