Family
- great-grandfather Albert Goldsmid: Paternal great-grandfather was a British Jew who founded the Jewish Lads' and Girls' Brigade
- sister Elissa Smith:
- father Peter Haden Guest: A British UN diplomat from 1946 to 1972; inherited the title 4th Baron Haden-Guest in 1987; died in 1996 at age 82
- mother Jean Hindes: Married Peter Haden-Guest in 1945; former CBS vice president
- half-brother Anthony Haden-Guest: Born out of wedlock in 1936; mother, Elisabeth Furse
- brother Nicholas Guest: Born in 1955
- daughter Annie Guest: Born in December 1986; adopted by Guest and wife Jamie Lee Curtis
- son Thomas Haden Guest: Born in December 1996; adopted by Guest and wife Jamie Lee Curtis
