Complex sentence: Wallace played Han Zihang, an attending physician with overseas educational background alongside Wang Zhiwen, Li Chengru and Zhang Tieling who were all well-known and highly respected actors.
Split into simpler sentences: Wallace played Han Zihang, an attending physician with oversea education background. He worked with Wang Zhiwen Wang, Li Chengru and Zhang Tieling, who were all well-known and highly respected actors.