[1] Born Karl-Heinz Stroux, the son of a physician, in Hamborn (now a district in the city of Duisburg), he studied in Berlin, history and philosophy until 1930.
From 1928 to 1930 he worked as an assistant to stage directors Karlheinz Martin and Jürgen Fehling, and as an actor.
[2] By the late 1940s he had been a senior director at several German theatres including ones in Darmstadt, Berlin (Hebbel-Theater) and Wiesbaden.
At the Schlosspark, he directed the German premiere of Samuel Beckett's Waiting for Godot in 1953 with the author in the audience.
[3] His sons pursued similar careers: Thomas Stroux [de] (born 1943) is also a theatre director,[6] and Stephan Stroux [de] (born 1945) is also an artist, theatre director and an actor.