Achim Freyer is a German stage director, set designer and painter. A protĂ©gĂ© of Bertolt Brecht, Freyer has become one of the worldâs leading opera directors, working throughout Europe and, since 2002, in the United States, principally with the Los Angeles Opera. Since 1992, Freyer has developed a number of productions featuring his own troupe of performers, known as the Freyer Ensemble.