Rosemary Dunsmore (born July 13, 1952) is a Canadian TV, film, and theatre actress, director, and educator.

She has starred in some well-known Canadian productions, including The Campbells, Anne of Green Gables: The Sequel, Road to Avonlea, Mom P.I., Murdoch Mysteries and Orphan Black.

[1] Born on July 13, 1952, in Edmonton, Alberta, Canada, Dunsmore was trained in drama at York University from which she graduated in 1973.

[2] She began her professional career in 1975 touring in Cedric Smith and George Luscombe's play Ten Lost Years.

[2] From 1990–1992 she starred as the central character of Sally Sullivan in two seasons of the Canadian television comedy-drama series Mom P.I..[2] She has guest starred on the Canadian television programs Being Erica, Degrassi: The Next Generation, Hangin' In, Lost Girl, Murdoch Mysteries, and ReGenesis.