Post got her first television role in 1982. She played Julianna Sleven, a Dutch refugee, in "The Sullivans". The program was an Australian drama television series about a middle-class Melbourne family and the effect World War II had on their lives. Post moved to Melbourne to work on the series for twelve months before leaving in 1984. That same year she had a role in the movie "One Night Stand", as Eva, a bank teller from the Czech Republic.