I am sure it has been posted for a while, but I just found several Anthroposophically inspired artists, prominent in the history of 20th century art, listed at the Rudolf Steiner Archives. It is interesting to see Cy Twombly and Jackson Pollock listed. I would like to add Pousette Dart. He was one of the original Abstract Expressionists. I was fortunate to see his retrospective, just before his death, at the Columbus Museum in Columbus GA, and noticed in the exhibition literature Rudolf Steiner mentioned.
Art and Anthroposophy
In Theory and Practice, Historical and Personal Connections
Art and Anthroposophy 