Susan Seaforth Hayes was born on July 11, 1943, in Oakland, California. She is an American dramatic actress. Susan Seaforth’s Net worth is $5 million. She is best known for her portrayal of Julie Williams on the NBC drama Days of Our Lives, and her intermittent portrayal of Joanna Manning on the CBS daytime drama The Young and the Restless. Her career started when she took the role of Julie Olsen Williams on Days of our Lives in 1968, and is the only actor to appear on the show for all six decades (1960s, 1970s, 1980s, 1990s, 2000s, and 2010s) in which it has been on the air. Susan Seaforth Hayes still regularly appears on Days as Julie Olsen Williams.