Answer
Yvan, portrayed by Alfred Molina in the Broadway production of "Art," is a successful dermatologist and art collector. He is the catalyst for the play's central conflict, as he purchases a large, all-white painting that his friend Serge finds pretentious. Yvan's unwavering belief in the painting's merit and Serge's vehement opposition to it strain their friendship and force them to confront their differing perspectives on art and life.