Helmut Roloff was a German pianist, recording artist, teacher and resistance fighter against the Nazi regime. In September 1942 Roloff was arrested in Berlin in the roundup of an anti-Nazi resistance group allegedly at the centre of a wider European espionage network identified by the Abwehr under the cryptonym the Red Orchestra. Covered by comrades who persuaded their interrogators that his contact with the group had been unwitting, he was spared execution and released. In post-war West Berlin, Roloff taught at the Academy of Music. After serving as the school's director, he retired in 1978.

The Red Orchestra, as it was known in Germany, was the name given by the Abwehr Section III.F to anti-Nazi resistance workers in August 1941. It primarily referred to a loose network of resistance groups, connected through personal contacts, uniting hundreds of opponents of the Nazi regime. These included groups of friends who held discussions that were centred on Harro Schulze-Boysen, Adam Kuckhoff and Arvid Harnack in Berlin, alongside many others. They printed and distributed prohibited leaflets, posters, and stickers, hoping to incite civil disobedience. They aided Jews and resistance to escape the regime, documented the atrocities of the Nazis, and transmitted military intelligence to the Allies. Contrary to legend, the Red Orchestra was neither directed by Soviet communists nor under a single leadership. It was a network of groups and individuals, often operating independently. To date, about 400 members are known by name.