Klaus Mann, German-American novelist, playwright, and critic (b. 1906)
Klaus Heinrich Thomas Mann (18 November 1906 – 21 May 1949) was a German writer and dissident. He was the son of Thomas Mann, a nephew of Heinrich Mann and brother of Erika Mann, with whom he maintained a lifelong close relationship, and Golo Mann. He is well known for his 1936 novel, Mephisto.