From Wikipedia, the free encyclopedia. Wolf Kahler (3 April 1940) is a German actor born in Kiel. Since 1975, he has appeared in many English language US and UK television and film productions. An early role for him was Kaiser Wilhelm II in Michael York's adventure film The Riddle of the Sands. One of his most well-known roles was that of Dietrich in Raiders of the Lost Ark. Kahler's voice also appears in video games including as Kaiser Vlad in Battalion Wars. Kahler played the Prince of Tübi...