Dieter Mann (20 June 1941 Berlin) is a German actor. He is best known for portraying General Wilhelm Keitel in the 2004 film Downfall. Dieter was born in Berlin, in 1941. His father was a worker. Mann attended school in Berlin-Pankow from 1947 to 1955, and after he graduated, he began working as an apprenticeship to a lathe machine cooling in the VEB Kühlautomat. His finished his professional training in 1958, at the VEB Schleifmaschinenwerk. From there he went to the Berlin Workers 'and Peasants' Faculty "Friedrich Engels". He studied there three years and later became a teacher. During his studies, he discovered his acting skills, and auditioned at the stage of Berliner Ensemble. During a four-month internship in Berlin he decides to become an actor. After he passed the exams, he studied