Julia Duffy (born Julia Margaret Hinds; June 27, 1951) is an American actress from Minneapolis, Minnesota, specializing in character roles, best known as the spoiled rich girl and Dick Loudon's (played by Bob Newhart) inn maid, Stephanie Vanderkellen, on the 1980s sitcom, Newhart.
Duffy's early caeer included parts in soap operas such as One Life to Live, The Doctors and Love of Life. Duffy also appeared in movies such as Night Warning (1981) and Cutter's Way (1981). She made an appearance on the television sitcom Cheers in 1982.
In 1983, she played Princess Ariel Baaldorf in the medieval spoof Wizards and Warriors, which had a short run on the CBS television network.