Joanna McCallum was born in 1950 and is the daughter of actors Googie Withers and John McCallum. She made her film debut in her mother’s movie made in Australia “Nickel Queen” in 1971. She gained great reviews for her performance in TV’s “Testament of Youth” in 1979 and “Good Behaviour” in 1983. Recently she has been very active on British television drama series such as “Doctors”, “New Tricks”, “Law & Order UK” and “Holby City”.
Agent’s page here.