It's possible that:
* The title is incorrect or misspelled. Double-check the spelling and any alternative titles.
* The film is from a different year. Try searching for "Cometo-san" with a different year.
* The film is less well-known. It may be a foreign film or a smaller production.
To help me find the information you need, please provide:
* The full title of the movie or TV show.
* The language of the film.
* Any other relevant details you may have.
With more information, I can assist you in finding the cast list.