John Banas is a New Zealander writer director actor and teacher who has for over forty years worked extensively in New Zealand Australia and the United States He began as an actor writer and director in Kiwi theatre during the 1970s Banas increasingly focused on dramatic writing for television from the 80s on After relocating to Australia he established himself as a prolific TV screenwriter with a string of iconic shows including Blue Heelers and City Homicide His many New Zealand scripts include Bombshell and awardwinning telemovies Siege and How to Murder Your Wife