Dominique Horwith, born April 23, 1957, in Paris, to French parents, moved to Berlin with his family in 1971. After finishing Berlin’s Collège Français, Horwitz started to work as a salesperson. Recommended by a friend, he got his first minor part in a TV production at the age of 19 in 1976, that was followed by a role in a film of the "Tatort" series and by his movie debut in Peter Lilienthal’s "David". During this time, Horwitz also started his career as a theatre actor. In the following years, Horwitz starred in numerous TV and movie productions and plays. Furthermore, Horwitz regularly performs as a chansonnier, for instance with a program of Jacques Brel songs (1997).

Horwitz made his most memorable movie appearances in Joseph Vilsmaier’s "Stalingrad" (1992), Michael Klier’s "Heidi M." (2001), or as mean Sportlehrer Daume in Ben Verbong"s "Sams in Gefahr" ("My Magical Friend Sams", 2003). In 1999, Horwitz was nominated for the German film prize for his part of homeless Victor in Andreas Dresen"s "Nachtgestalten" ("Night Shapes").