Born in Decin, Czechoslovakia, Kasper shoed an early interest in painting, and was the youngest pupil accepted at the Dresden Academy of Art, which was the finest in Europe at that time. He was interned in a communist labour camp in Czechoslovakia, and escaped to West Germany. In 1952, he emigrated to Canada, and established a small advertising agency, Kasper & Gordon, Toronto. He painted actively while working as a commercial artist, and his paintings were displayed throughout the corporate offices. Clients including Coca-Cola, Black & Decker, Texaco and Poulan, all acquired examples of his work. Kasper now paints full-time mostly in watercolour.
His son Max Kasper, is the Principle Bass for Symphony Nova Scotia.