Zhao Si is a character in the series Country Love. Zhao Yutian's father, Liu Ying's father-in-law, Liu Neng's in-laws, and Liu Neng always oppose each other.

Guan Xiaoping plays in Country Love, and Liu plays Country Love 2 and its subsequent series.

Liu Neng said Zhao Si's jingle: "Zhao Guoqiang, Zhao Guoqiang, put spring on your cheek."