He was also an actor in the American television series Boys and Girls, created by Fred Mallow.
After he was released from prison, he worked as a journalist and author from 1971 to 1979 for the German gay magazine DU&ICH.
In November 1977, his work Die Konsequenz was filmed and shown on German television.
Actors in the film Die Konsequenz were Jürgen Prochnow as Martin Kurath and Ernst Hannawald as Thomas Manzoni.
Ziegler committed suicide, aged 43, in Zurich by overdosing on tranquilizers.