Gerda Maureen Nicolson (11 November 1936 – 12 June 1992) was an Australian actress, who worked across all major forms of media, including theatre, television and films, she was best known for several long-running television roles, and was a constant presence on the small screen since the early 60s until her death. Nicholson's roles included the rural series Bellbird police detective series Bluey and soap opera Prisoner. (Via Wikipedia)