An Austrian-born actor, he gained international acclaim for his role in "Judgment at Nuremberg" (1961), winning an Academy Award for Best Actor. Raised in Switzerland, he was multilingual, which enriched his diverse performances in European and Hollywood films. Besides acting, he was an accomplished director and producer, earning accolades for his documentary work. Known for his intense portrayals, he continued to work in film and theater throughout his life, leaving a lasting legacy in cinema.