Werner von Trapp (born 1915) was the younger son in the famous von Trapp family, whose story was immortalised in the musical "The Sound of Music". He is represented in the movie by the character Kurt.
Werner Klemperer was an actor best known for his portrayal of the incompetent commandant of Stalag 13, Col. Klink. His father was a composer who moved his family to America to escape anti-Semitic pressure in Europe.
This is my dad's name - the biggest problem with it is that it is consistently misspelled as "Warner" by everyone told his name. I wouldn't recommend it be given to a child too far away from Germany, both because of the spelling and because I think it sounds better as intended - "verner" - and that's not going to happen most other places.