Qiang Chen
— Hou Zhan-Xi
Defu Du
— Xi Bo-Xiang
Jiang Hao
— Chief engineer
Wang Jiayi
— Liang Ri-Sheng
Lü Ban
— Factory Director
Yang Yu
— Wu Yizhu
Jingping Zhang
— Worker
Yin Liang
— Worker
Lu Fei
— Engineering department head
Xiaofei Sun
— Worker
金风
— Military delegate
Chunying Wang
— Worker
Lin Na
— Radio announcer
Wang Lifu
— Technology section head