Miller began her career in the 1970s as a singer and dancer, who later gained attention in Canadian television for representing Spumante Bambino wine in commercial advertisements, as well as for her role as the host of the children's television series, "Polka Dot Door". She also appeared in Sofia Coppola's "The Virgin Suicides". She won a 2001 Gemini Award for Best Performance by an Actress in a Featured Supporting Role in a Dramatic Program or Mini-Series for her work as Elisha Cuthbert's mother in "Lucky Girl".