MOGULESKO, SIGMUND (Zelig ; 1858–1914), Yiddish actor. As a boy he sang in a synagogue choir in Bessarabia. Discovered by Abraham Goldfaden, he became a successful comedian. In 1880 he led a company in Odessa and in 1881 published a collection of verse, Kupleten Komishe un Humoristishe. Arriving in New York in 1886, he sang in Offenbach's Bluebeard, acted in Thomashefsky's productions, and was in Jacob P. Adler's presentation of Siberia (1892). He wrote the music for M.H. Hurwitz' The Sacrifice and for Jacob Gordin's only operetta, The Fair Miriam.