Sean Skerry and Glenn Lefchak both had guest roles on the Trailerpark series.
Cosima Henmann is the daughter of director and screenwriter Granz Henman.
Cosima Henmann's first role was in Teufelskicker by Granz Henman, based on the novel by Frauke Nahrgang.
The first broadcast of Harry's Island on 1 December 2017 was watched by 4.28 million viewers in Germany and achieved a market share of 14.8% for Das Erste.
Cosima Henmann role outside the films of her father.