Cast of One and Only CDrama Cast of the Chinese Drama One and Only Ren JialunZhousheng ChenMain Role Bai LuCui ShiyiMain Role Wang XingyueLiu ZihangSupport Role Zhou LulaXiao YanSupport Role Yao YichenCui FengSupport Role Su MengyunFeng QiaoSupport Role Wu MansiPrincess XinghuaSupport Role Liang AiqiQi ZhenzhenSupport Role Zhang ZhangCheng XiSupport Role Han ChengyuHuan YuSupport Role Wang HaozhenQin YanSupport Role Xi XueGao HuaiyangSupport Role Dai SiJin Zhen'erSupport Role He YichenYang ShaoSupport Role Liu WeiweiCui WenjunSupport Role He YuxiaoZhousheng Chen(Childhood)Support Role Luo LeiThe seventh son of Li FamilySupport Role