ID Me: Brother Wang and Brother Liu Tour Taiwan (p.1) 1958

[heinz Germany]

removed both directors Chang Fang-Hsia & Tien Feng from cast, they are not in that movie as actors (not in cameo for sure)
but added the uncredited (familiar faces) Wang Sun (1) & Fai Wan https://hkmdb.com/db/movies/images.mhtm ... ay_set=eng. that guy https://hkmdb.com/db/movies/image_detai ... ay_set=eng is probably Wang Lian-Fang, he appears together with Yu Hsing-Tien in both parts and is credited with him together twice