Diana Marilyn Quick is an English actress known for playing British aristocrats.

Filmography

• 2026Amaretti — Lenny
• 2026Practical Magic 2 — Margaret
• 2025Brighton Storeys
• 2024Forever Young — Robyn Smith
• 2023The Curse of Kirrin Island — Mrs. Wentworth
• The Famous Five — Mrs Wentworth
• 2022Alice, Darling — Thanks
• 2022Tikkun Olam
• 2017The Death of Stalin — Polina Molotova
• Houdini & Doyle — Cecilia Weiss
• The Living and the Dead — Sylvia
• 2013Compassion — Lady
• Father Brown — Lady Cecily
• 2013Side by Side — Joan Dunbar
• Case Histories — Miriam Baker
• 2011Mother's Milk — Kettle
• Silk — Justice Elizabeth Frank
• 2010Love/Loss — Angela
• Law & Order: UK
• The Protectors — Claire Thornton
• The Queen — The Queen
• 2008Trent 2 Rent — Nanna
• 2007Catwalk Dogs — Mrs Jessop, Guy's mother
• Kingdom — Janet Cramer
• Lewis — Gwen Raeburn
• Sensitive Skin — Cheryl
• New Tricks — Julia Eldridge
• Doctor Who: Scream of the Shalka — Prime (voice)
• 2003Doctor Who: The Scream of the Shalka — Prime
• 2002AKA — Lady Gryffoyn
• 2002Revengers Tragedy — The Duchess
• 2001The Affair of the Necklace — Madame Pomfré
• 2001The Discovery of Heaven — Sophia Brons
• 2000Saving Grace — Honey
• 1998Vigo — Emily
• Midsomer Murders — Clare Bonavita, Hermione Lancaster
• Dalziel and Pascoe — ACC Stella Applegarth
• 1996Rasputin — Grand Duchess Ella
• 1996The Leading Man — Susan
• Dandelion Dead — Marion Glassford-Gale
• 1994Nostradamus — Diane de Poitiers
• Clarissa — Lady Betty
• The Orchid House — Madam
• 1990The Price of the Bride — Alice Daltrey
• Agatha Christie's Poirot — Mrs. Welman
• The Justice Game — Kate Fielding
• 1989Wilt — Sally
• 1988Chekhov in Yalta — Olga Knipper
• 1988Vroom — Susan
• 1987Cariani and the Courtesans — Tullia
• Inspector Morse — Hilary Stephens
• 1986Max My Love — Camille
• ScreenPlay — Tullia
• 1985Nineteen Nineteen — Anna
• 1984Ordeal by Innocence — Gwenda Vaughan
• 1983The Phantom of the Opera — Madame Bianchi
• The Woman in White — Marian Halcombe
• Brideshead Revisited — Lady Julia Flyte
• 1978The Big Sleep — Mona Grant
• 1978The Odd Job — Fiona Harris
• 1977The Duellists — Laura
• 1977The Three Hostages — Mary Hannay
• 1975A Private Enterprise — Penny
• 1975Mr. Garrick and Mrs. Woffington — Mrs. Woffington
• Private Affairs — Peg Woffington
• Bedtime Stories — Anna Carpenter
• Kolchak: The Night Stalker — Ariel
• Napoleon and Love — Eléonore
• Centre Play — Bo
• The Protectors — Anna De Santos
• 1971A Christmas Carol — Ghost of Christmas Past (voice)
• 1971Nicholas and Alexandra — Sonya
• Christ Recrucified — Lenio
• The Complete and Utter History of Britain
• The Wednesday Play — Geraldine

Appearances as themselves (1)

• 2005Revisiting Brideshead — Self