Ray Harryhausen

Raymond Frederick Harryhausen (June 29, 1920 – May 7, 2013) was an American-British animator and special effects creator who is regarded as one of the most influential figures in the history of both fields. In a career spanning more than 40 years, he built upon the techniques of his mentor, Willis H. O’Brien, to develop a form of stop motion model animation known as "Dynamation" and advance the field of cinematic special effects…Wikipedia