Templeton

From Memory Alpha, the free Star Trek reference.

Mrs. Templeton was a character in Captain Janeway's Gothic holo-novel. Mrs. Templeton tended Lord Burleigh's mansion. She disapproved of Janeway, who played the governess in the novel and guarded the secrets of the house especially that of the first Mrs. Burleigh who had died. She made life difficult for Janeway's character. (VOY: "Cathexis")

In 2372, Captain Janeway hallucinated that she appeared outside the holodeck and was trying to kill her. She told Janeway that she had come between Lord Burleigh and her. That she was the one suppose to take care of him. That Janeway had caused trouble and that the family didn't want anymore trouble. (VOY: "Persistence of Vision")

Mrs. Templeton was played by returning Trek actress Carolyn Seymour.