What actors and actresses appeared in Reika 15 do no Tegami - 2011?

It seems you are asking about the 2011 Japanese film titled "Reika 15 no Tegami" (Reika 15's Letter). However, there is no information available about a film with this title.

It's possible that:

* The title is incorrect. There might be a misspelling or the film has a different title in English.

* The film was released under a different name. Sometimes films have different titles in different countries.

* The film is obscure or unreleased. There are many films that are never widely released or are only available in a limited market.

To help me find the information you are looking for, could you please provide:

* The original Japanese title: If you know the title in Japanese, that would be helpful.

* Any other information about the film: For example, do you know the genre, the director, or any other actors involved?

* The year of release: Is it definitely 2011?

With more information, I can try to find the film and its cast.