Feuchtwanger was a friend and mentor to Brecht, who sharpened his teeth in Reinhardt’s and Piscator’s theatres. Eisler (a lifelong friend) and Weill were among his most celebrated collaborators. Heartfield acknowledged his longtime friend’s influence, while Herzfelde published his work, and joined in setting up an anti-fascist publishing house in New York. Hindemith collaborated and quarreled with him, Grosz and Döblin were friends, Lenya one of his performers, Tretyakov a translator and populariser of his work, and Chaplin and Auden among those he met in America. Weigel married him, and ran the Berliner Ensemble after his death.