Valerie Mahaffey. Actress: Seabiscuit - Mit dem Willen zum Erfolg. Valerie Mahaffey is an American character actress and producer. She began her career starring in the NBC daytime soap opera The Doctors (1979-81), for which in 1980 she was nominated for the Daytime Emmy Award for Outstanding Supporting Actress in a Drama Series.In 1992, Mahaffey won the Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series for her...