Her most notable role was her portrayal of Sylvie Gerard, the business partner/sidekick on Tropical Heat, which was retitled Sweating Bullets when transmitted in the United States.
She is a native of Whitney Pier on Cape Breton Island, Nova Scotia.
Dunn started out playing parts of defenceless blondes in romantic movies.
Her last credited film role was Mary in The Death of Alice Blue in 2009.
In 2008, she returned to her home town, where she opened an alternative energy medicine clinic.