Theodor Loos was born on May 18, 1883 in Zwingenberg, Hesse, Germany as August Konrad Loos.
He was an actor and director, known for M - Eine Stadt sucht einen Mörder (1931), Metropolis (1927) and Der Fall des Generalstabs-Oberst Redl (1931). He died on June 27, 1954 in Stuttgart, Germany.
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