That is what he was called in my family although I did not know him of course. Isidore Casher (1887-1948) was among the significant founders of the Yiddish Theater. He went on to star in a number of Yiddish motion pictures. The is not him on the poster photograph, that is co-star David Opatoshu. “The Light Ahead” 1939.
One of my discoveries for my new project about the Yiddish Theater. The Yiddish Theater along 2nd Avenue in New York City in the early 20th Century gave birth to much of the modern theater, motion pictures, music and entertainment cherished still today.