He received for his first leading role in a movie in 1961 the German Movie Prize 'der Bundesfilmpreis'. He was a student of the German actor Hans Caninenberg.
On the cover of the US video release of The Sinister Monk (1965) he was credited as 'Harold Leipnitz'.
On the movie poster for the Italian release of Creature with the Blue Hand (1967). he was credited as 'Harald Leipniz'.