Artists: Robert Rauschenberg
This hard-to-characterize boundary-breaker has worked with America's best-known avant-garde artists, musicians and choreographers, and is a very important cultural figure in post-WWII America. A fine article in the Christian Science Monitor describes his contributions and influences in greater detail:
Artists: Katsushika Hokusai
Katsushika Hokusai is the printmaker who produced the ubiquitous The Great Wave from Thirty-six Views of Mount Fuji. His woodcuts were collected by the Impressionists, including Claude Monet, Edgar Degas and Henri de Toulouse-Lautrec.