Paul Meurisse

Paul Meurisse (21 December 1912, Dunkirk – 19 January 1979, Neuilly-sur-Seine) was a French actor who appeared in over 60 films and many stage productions. Meurisse was noted for the elegance of his acting style, and for his versatility. He was equally able to play comedic and serious dramatic roles. His screen appearances ranged from the droll and drily humorous to the menacing and disturbing.

His most celebrated role was that of the sadistic and vindictive headmaster in the 1955 film Les Diaboliques. Description above from the Wikipedia article Paul Meurisse, licensed under CC-BY-SA, full list of contributors on Wikipedia.