- Father, with Natalie Wood, of daughter Natasha Gregson Wagner.
- Was Julie Christie's agent when he met Natalie Wood in September 1966. Christie at that time was being courted by Wood's ex-boyfriend, Warren Beatty.
- Has five children: daughter Sarah (b. 1958), daughter Charlotte (b. 1960) and son Hugo (b. 1962) with his first wife, Sally Ronaldson; daughter Natasha Gregson Wagner (b. 1970) with second wife, actress Natalie Wood; and daughter Poppy (b. 1984) with third wife, authoress Julia Gregson.
- In 1933 his uncle, Charlie Hanson, drowned, somewhat questionably, in the River Thames, his head bashed in.
- Gregson's mother, Violet Hanson (1899-1999), was the paternal great-granddaughter of Sir Reginald Hanson, 559th Lord Mayor of London.
- It was stated in the documentary "Natalie Wood: What Remains Behind," that the reason his and Natalie's marriage broke up was because of his affair with her personal assistant.
- Ex-brother-in-law of Lana Wood.
- Lives in Wales.
- Brother-in-law of Sue Walker.
- Father-in-law of Barry Watson.
- Younger brother of Michael Craig.
- Ex-father-in-law of D.V. DeVincentis.
- Ex-son-in-law of Maria Gurdin and Nick Gurdin.
Contribute to this page
Suggest an edit or add missing content