Why do the old versions of Romance of the Three Kingdoms often change people?

In the old version of Romance of the Three Kingdoms, except for the main characters such as Cao Cao, Liu Bei, Zhuge Liang, Guan Yu and Zhang Fei, the rest of the characters basically changed actors. For example, Lu Su, Zhao Yun, Zhang Liao, Wei Yan, Jiang Wei and other figures changed three times in a row.

Reasons for changing actors such as Lu Su halfway;

One is time. The filming of Romance of the Three Kingdoms lasted five years from 1990 to 1994. Many actors have limited schedules and can't shoot for long. Therefore, including some famous figures, there have also been frequent changes in actors.

Second, during the filming of Romance of the Three Kingdoms, the conditions at that time were rather difficult. Some actors quit halfway for various reasons.

Third, the plot needs to be filmed. During the filming of the old version of Romance of the Three Kingdoms, there were no computer special effects and no studios. All the scenes are real shots. In order to portray the realism of the characters in the Three Kingdoms as much as possible, the armor and weapons at that time were real, not shooting props.

Because all kinds of props are real, the basic skills of actors are very demanding. Especially military commanders, military commanders need to be able to turn over and get on the horse, which many actors can't do Therefore, in the process of shooting, including some famous Iliad, actors often change, such as Zhao Yun, Taishi Ci, Chu Xu and so on.

Fourthly, the old version of The Romance of the Three Kingdoms needs to focus on 84 episodes in the filming process, which reflects the complex relationship between Wei, Shu and Wu for more than 70 years. Therefore, the film was shot by five directors in stages, and it was divided into five parts: competing with each other, Battle of Red Cliffs, the war of the Three Kingdoms, fighting in the south and fighting in the north, and unifying the three points. Because they are filmed separately, there are differences in the choice of actors during the filming process.