When television broadcasted a play from their theater in 1953 for the first time the Millowitsch theater became a very popular institution in television. In the next years successful plays were broadcasted time and again and the popularity of the Millowitsch's increased enormous - which only was achieved by the Ohnsorg theater in the same measure.
Together with her brother, the legendary Willy Millowitsch, she successfully continued the family tradition. The children of Willy also became successful stage actors.
The family Millowitsch became established when they founded their own theater in 1936 with the Millowitsch theater in Cologne - which still exist till today. Lucy and Willy Millowitsch became the undisputed stage couple for the next decades.
She married in Venezuela in 1960 the lawyer and art collector Josef Haubrich. The marriage ended on 4 September 1961 when he died of a stroke.
After World War II Lucy and Willy Millowitsch were able to reopen their theater in the same year and could tie in with their former successes.
From 1936 Lucy Millowitsch also took part in movies time and again.
Besides her activity as an actress she also spoke roles in radio plays.
Her father Peter Wilhelm was a well-known stage actor, her aunt Cordy Millowitsch was active on stage and in movies.