Here are the credited actors:
* The Pied Piper: *This role is uncredited, but is likely played by the film's director, Herbert L. Strock. He is known for directing various low-budget films, often playing roles in them as well.*
* The Mayor: *Played by Paul Tripp. Tripp appeared in a few other films, but was primarily a stage actor.*
* The Burgomeister: *Played by Herbert Rudley. He had a longer career in films and television, appearing in shows like "Perry Mason".*
* The Old Woman: *Played by Jeanette Nolan. Nolan had a long and successful career in films and television, appearing in numerous Westerns and television series like "Gunsmoke" and "Bonanza".*
* The Mother: *Played by Jean Englund. Englund appeared in several films and television series, but is best known for her work in the 1950s.*
You can find more information about the film and its cast on websites like IMDb and Wikipedia.