Moonlight Mask (aka Gekko Kamen), is a black and white tokusatsu TV drama series, produced by the advertising agency Senkosha and was aired on KRTV (now TBS) from February 24, 1958 to July 5, 1959, with a total of 130 (or 131) episodes, divided into 5 segments.

Since the original show, Gekko Kamen has gained the popularity of being the first Japanese live action television superhero, appearing in films and TV shows well past the length of the original series.