Actress Karin Mani was a strikingly buxom, gorgeous and voluptuous brunette knockout who alas had a regrettably fleeting acting career that lasted from the late 70s up until the mid 80s.
That was all about nudity.
Birtwistle is firm on this.
In 1975, her mother and second husband moved to Australia, where, after she left school, Greta worked as an Italian.