​From Wikipedia, the free encyclopedia.   Lee Strasberg was an American actor, director and acting teacher.  He cofounded, with directors Harold Clurman and Cheryl Crawford, the Group Theatre in 1931, which was hailed as "America's first true theatrical collective".  In 1951, he became director of the non-profit Actors Studio, in New York City, considered "the nation's most prestigious acting school".  In 1969, Strasberg founded the Lee Strasberg Theatre and Film Institute in New York City and in Hollywood to teach the work he pioneered. He i…