Julia Hoffman is a fictional character played by Grayson Hall in the 1966 ABC soap opera Dark Shadows. A doctor in the fields of psychology and rare blood disorders and head of the Windcliff Sanitarium, she moved into Collinwood and discovered the vampire Barnabas Collins. Initially, Julia represented a threat to Barnabas' undead existence, but eventually she became one of his most staunch allies. Together, Julia and Barnabas worked to assist the Collins family in the past, present, future, and in Parallel Time.