Film

No.	Year	Title	Role	Vote Average
1	1989	Killing Dad (Or How to Love Your Mother)	Barmaid	35
2	1993	Century	Woman in Police Station	54
3	1994	Four Weddings and a Funeral	Henrietta	68
4	1994	Tom & Viv	Woman	62
5	1994	Staggered	Carmen Svennipeg	53
6	1994	Princess Caraboo	Mrs. Peake	54
7	1997	FairyTale: A True Story	Peter Pan	64
8	1997	The Man Who Knew Too Little	Barbara Ritchie	64
9	1999	Heart	Nicole Farmer	55
10	2000	Longitude	Muriel Gould	73
11	2002	Crush	Molly Cartwright	57
12	2002	The Real Jane Austen	Presenter / Narrator	85
13	2003	What a Girl Wants	Glynnis Payne	63
14	2003	Doc Martin and the Legend of the Cloutie	Nicky Bowden	64
15	2003	The Dreamers	Mother	72
16	2003	Wilde Stories: The Nightingale and the Rose	Professor's Daughter (voice)	0
17	2004	Agent Cody Banks 2: Destination London	Jo Kenworth	56
18	2004	Roman Road	Maddy Bancroft	0
19	2005	The Hitchhiker's Guide to the Galaxy	Questular Rontok	67
20	2005	The Best Man	Dana	53
21	2005	Don't Crash: The Documentary of the Making of the Movie of the Book of the Radio Series of 'The Hitchhiker's Guide to the Galaxy'	Self	0
22	2005	A Waste of Shame: The Mystery of Shakespeare and His Sonnets	Anne Hathaway	53
23	2006	The Secret Life of Mrs. Beeton	Elizabeth Doring	62
24	2006	Breaking and Entering	Kate	60
25	2007	Sherlock Holmes and the Baker Street Irregulars	Irene Adler	69
26	2007	St. Trinian's	Miss Bagstock	59
27	2007	Christmas at the Riviera	Diane	42
28	2010	Critical Eye	Laura	0
29	2011	Hysteria	Mrs. Bellamy	67
30	2012	We'll Take Manhattan	Lucie Clayton	57
31	2013	Confessions Of An Alien Abductee	Narrator	46
32	2013	How I Live Now	Aunt Penn	67
33	2013	Private Lives	Amanda Prynne	100
34	2014	Testament of Youth	Mrs. Leighton	73
35	2014	Queen Victoria's Letters: A Monarch Unveiled	Queen Victoria	100
36	2016	The Carer	Milly	67
37	2016	National Theatre Live: The Seagull	Irina Nikolaevna Arkadina	0
38	2016	This Beautiful Fantastic	Mrs Bramble	71
39	2016	The Last Dragonslayer	Stuffco president	60
40	2017	Love of My Life	Grace	51
41	2018	The Happy Prince	Mrs. Arbuthnott	63
42	2018	Nativity Rocks!	Clara Hargreaves	36
43	2019	For Love or Money	Carol	54
44	2019	One Red Nose Day and a Wedding	Henrietta	73
45	2019	Benjamin	Tessa	63
46	2020	Come Away	Eleanor Morrow	58
47	2022	Mrs. Harris Goes to Paris	Lady Dant	73
48	2022	Stromboli	Diane	53
49		Promenade		0

Television

No.	Year	Title	Role	Vote Average
1	1986	Casualty	Celia Morton	60
2	1987	Inspector Morse	Sally Smith	78
3	1989	Agatha Christie's Poirot	Virginie Mesnard	82
4	1990	Jupiter Moon		52
5	1995	Kavanagh Q.C.	Julia Piper	68
6	1995	Pride and Prejudice	Caroline Bingley	82
7	1996	Silent Witness		76
8	1996	Karaoke	Anna Griffiths	69
9	1996	Cold Lazarus	Anna Griffiths	68
10	1999	The Vice	Dr. Christine Weir	55
11	2000	Longitude	Muriel Gould	70
12	2000	Rebus	Amanda Morrison	69
13	2001	Waking the Dead	Lucy Christie	72
14	2001	The Cazalets	Diana Mackintosh	80
15	2002	Spooks	Juliet Shaw	76
16	2002	Tipping the Velvet	Diana Lethaby	69
17	2003	Fortysomething		73
18	2004	Hustle	Wendy Stanton	76
19	2004	Agatha Christie's Marple	Lydia Horton	76
20	2006	Suburban Shootout		33
21	2007	Lewis	Judith Suskin	75
22	2009	Law & Order: UK		68
23	2010	Downton Abbey	Lady Anstruther	81
24	2011	The Hour	Lix Storm	75
25	2011	Hidden	Elspeth Verney	64
26	2011	Celebrity Antiques Road Trip	Self - Participant	50
27	2011	Death in Paradise	Ciss Dacre	75
28	2012	Pramface		73
29	2012	A Touch of Cloth	Hope Goodgirl	73
30	2013	Shetland	Phyllis Brennan	75
31	2014	Fleming	Second Officer Monday	69
32	2014	Inside No. 9	Elizabeth	80
33	2014	Mapp and Lucia	Emmeline 'Lucia' Lucas	66
34	2016	Flowers	Viv	72
35	2016	New Blood	Eleanor Davies	70
36	2016	The Crown	Lady Rosse	82
37	2018	Trust	Penelope	71
38	2018	Ordeal by Innocence	Rachel Argyll	69
39	2019	Pennyworth: The Origin of Batman's Butler	Frances Gaunt	79
40	2021	The Watch	Lord Vetinari	55
41	2022	Hotel Portofino	Lady Latchmere	70
42	2022	That Dirty Black Bag	Hellen	69
43	2022	Compulsion	Sasha	58
44	2023	Fifteen-Love	And Woodward	55
45	2024	My Lady Jane	Lady Frances Grey	75
46		Outrageous	Sydney Bowles Mitford	0
47		The Girlfriend	Lilith	0