Peter King was born in Wellington, New Zealand in 1961. He is of (Patrilineal)  English, Irish, and (Matrilineal) Scottish, German and Maori (Ngaiterangi / Tuhoe) descent. While his nuclear DNA is mixed his mitochondrial DNA (through the maternal line) goes back to Taiwan through Maori descent.
His father John King was born in London, England in 1935 and came to New Zealand with his family immediately after the second world war (1946). For most of his career he was a film director and later producer at the National Film Unit.  Among his many films was a biopic of Te Rauparaha the Ngati Toa leader, and a film about the Maniapoto called Te Kuititanga The Narrowing
His mother Dell Calvert (King) was born on a dairy farm in Aria, New Zealand in 1937.
Dell's brothers Mac and Graham were significant in New Zealand's vital dairy industry during the 1980s and 1990s.
Dell was (and remains) an active thespian and was an actor, director and producer at Downstage and Unity in Wellington in the 1960s. In the 1970s she worked at Pacific Films for John O'Shea, New Zealand's only independent film-maker at that time. In the 1980s Dell went independent herself. Her biography at NZonscreen is here.
John and Dell live in Paeroa where the are very active in the local performing arts community.
Peter's only brother Bashan (previously Roger) was born in 1963. Bash studied comparative religion and is now a drama teacher at Motueka High School.
Peter is married to Jenny Fenton with whom he has two sons: Joshua (12) and Oliver (7).
He was previously married with two sons: Lars (22) and Torsten (20).