The son of the non-conformist intellectual Henry Bentinck, Portland was born on a sheep station in Barton, Tasmania, Australia, but moved with his family to Berkhamsted in England at the age of two.
[7] Bentinck has revoiced Gérard Depardieu in the film Nouvelle France,[8] and Chow Yun Fat in Crouching Tiger, Hidden Dragon.
Also Fast Girls, The Redistributors, Rule Number Three with Nicholas Hoult, The Pirates of Penzance with Kevin Kline, Trevor Nunn's Twelfth Night, Vanity Fair, the U-boat commander in Enigma, Fantastic Beasts and Where to Find Them, and many short and student films.
Bentinck toured a one-man show, Love Your Chocolates,[11] – a mixture of stories, comedy songs and multi-media, and played Frank in Educating Rita[12] at the Watermill Theatre, Newbury, Berkshire, in 2009.
Bentinck regularly writes travel articles for The Mail on Sunday[13] and his book, Avant Garde A Clue, co-written with Albert Welling, is published on Kindle.
[citation needed] Bentinck's autobiography, Being David Archer – And Other Unusual Ways of Earning a Living was published by Constable in 2017.
Bentinck married the milliner Judith "Judy" Ann Emerson (born Newcastle-under-Lyme, 10 October 1952) in London on 8 September 1979.