Casting
Mai Ngọc Căn
Bao, worker
Hoa Van
Duoc, foreman
Mạnh Linh
Quyet, party secretary
Kim Thanh
May, controller
Lân Bích
Hoa, worker
Minh Đức
Bien, laboratory assistant
Anh Thái
Thanh, union member
Tiem Ton
Xuan, union's director
Minh Trâm
Mrs. Duong, Bao's mother
Sỹ Minh
Deputy technical director
Đức Hoàn
Voong's wife
Mai Châu
Quyet's wife