美国电影演员，1928年7月4日生于英国贝尔法斯特。原名威廉·米勒，曾在美、英以及其他国家参加过很多电影的演出，在当时也被认为是国际一流的电影演员。
Tall, portly Viennese character actor Walter Slezak simultaneously pursued two different careers after his arrival in America in 1930: one, as a star of musical comedy on the stage, and another, as a portrayer of villains, impish rogues or pompous buffoons on screen. Born of a musical family in May 1902, son of famous opera star Leo Slezak, Walter studied medicine but quickly lost interest. For a while, he held a position working in a bank. At the age of twenty, he was spotted in a beer garden by the Hungarian actor/director Mihaly Kertesz (Michael Curtiz) and persuaded to appear in his motion picture Sodom und Gomorrha (1922). Subsequently, the then rather lean Walter Slezak was signed by Ufa and became a matinee idol in German films of the 1920's. Always somewhat too fond of the culinary arts, Slezak over the years put on so much weight that, by the end of the decade, he was no longer considered bankable as a romantic star and became relegated to playing character roles instead.
