Are traditional Chinese characters regular script?

No, regular script belongs to calligraphy. These titles include regular script, running script, cursive script, official script and seal script. Traditional Chinese characters are a font form of Chinese characters. Because of the change of the times and the convenience of writing, there is a process from complex to simple, so there is a difference between simplified Chinese characters and traditional Chinese characters. The two are not the same. Regular script gradually evolved from official script, becoming more simplified and more horizontal and vertical.