Film

No.	Year	Title	Role	Vote Average
1	1968	Sympathy for the Devil		63
2	1969	The Smashing Bird I Used to Know	Schoolgirl	47
3	1974	Jennie: Lady Randolph Churchill	Princess Alexandra	80
4	1978	Affront	Susan	0
5	1979	Working Surface: A Short Study (with Actors) in the 'Ways' of a Bourgeois Writer		72
6	1981	Dear Brutus	Mabel Purdie	0
7	1983	The Lady's Maid's Bell	Miss Hartley	0
8	1984	Sleepwalker	Angela Paradise	57
9	1985	Anna Karenina	Dolly	60
10	1986	Paying Guests (Part 1)	Florence Kemp	0
11	1986	Paying Guests (Part 2)	Florence Kemp	0
12	1987	Miss Marple: 4.50 from Paddington	Emma Crackenthorpe	73
13	1987	Comrades	Mrs. Frampton	68
14	1989	Unexplained Laughter	Elizabeth	0
15	1989	The Chronicles of Narnia: Prince Caspian & The Voyage of the Dawn Treader	Trufflehunter (voice)	54
16	1991	Secret Friends	Kate	37
17	1991	Children of the North	Nancy Mailer	70
18	1997	The Mill on the Floss	Sophy Deane	60
19	1999	The Dark Room	Caroline Harris	50
20	1999	Cotton Mary	Mrs Smythe	47
21	2003	The Soul Keeper	Sabina's mother	66
22	2003	The Brides in the Bath	Elizabeth Burnbam	59
23	2004	Belonging	Averil	56
24	2005	Falling	Lady Carteret	68
25	2006	These Foolish Things	Mrs. Bannock	59
26	2008	One of Those Days	Jean	73
27	2010	You Will Meet a Tall Dark Stranger	Alan's Mother	59
28	2017	Another Mother's Son	Maude Vibert	67
29	2017	Letters from Baghdad	Janet Courtney	67
30	2017	The Boy with the Topknot	Laura's Mother	58
31	2019	The Cleansing Hour	Schoolmarm	63
32	2020	Kat and the Band	Gran	52
33	2022	The Debutante	The Debutante - Older (voice) / Mother (voice)	59
34	2024	Arthur's Whisky	Rachel	58

Television

No.	Year	Title	Role	Vote Average
1	1970	Play for Today	Mabel Purdie	63
2	1971	Sense and Sensibility	Elinor Dashwood	55
3	1971	The Last of the Mohicans	Alice Munro	47
4	1972	War & Peace	Sonya Alexandrovna	71
5	1972	Colditz	Cathy Carter	73
6	1972	The Edwardians		57
7	1974	Within These Walls		53
8	1974	Jennie: Lady Randolph Churchill	Princess Alexandra	63
9	1975	Ballet Shoes	Theo Danes	80
10	1975	Rumpole of the Bailey		71
11	1976	The Duchess of Duke Street		78
12	1978	Lillie		82
13	1979	Rebecca	Mrs de Winter	77
14	1980	Lady Killers	Mary Eleanor Pearcey	50
15	1982	The Agatha Christie Hour	Claire Trent	67
16	1982	Timewatch		69
17	1984	Sherlock Holmes	Susan Cushing	81
18	1985	Tender Is the Night	Hannah	63
19	1985	Time for Murder	Hester Peters	40
20	1986	First Among Equals	Elizabeth Kerslake	0
21	1987	Inspector Morse	Susan Fallon	78
22	1988	Hannay		50
23	1988	The Play on One	Elizabeth	60
24	1988	Thompson		10
25	1988	The Chronicles of Narnia	Trufflehunter (voice)	74
26	1990	Cluedo	Herself	64
27	1991	The Darling Buds of May	Miss Jimson	78
28	1992	Maigret		69
29	1992	Heartbeat	Diana Firth	71
30	1992	Heartbeat	Caroline	71
31	1995	Bramwell	Mrs. Elizabeth Quail	42
32	1995	Pride and Prejudice	Mrs. Gardiner	82
33	1997	Midsomer Murders	Amy Lyddiard	75
34	1997	Midsomer Murders	Mother Julian	75
35	1997	A Dance to the Music of Time	Isobel (older)	53
36	2000	Monarch of the Glen		75
37	2001	The Glass	Mary Duggan	0
38	2002	The Forsyte Saga	Mrs. Heron	79
39	2002	Foyle's War		79
40	2004	He Knew He Was Right	Mrs. Stanbury	78
41	2004	Agatha Christie's Marple	Grace Ritchie	77
42	2005	Bleak House	Mrs. Badger	82
43	2008	Never Better		60
44	2008	Mutual Friends	Sylvia	70
45	2010	Downton Abbey	Duchess of Yeovil	81
46	2011	Death in Paradise	Judith Musgrove	74
47	2016	Agatha Raisin	Lady Derrington	61
48	2016	The Living and the Dead	Victoria Appleby	67
49	2016	Delicious	Gertrude	63
50	2017	Man in an Orange Shirt	Jennifer	76
51	2019	Celebrity Gogglebox	Self	69
52	2019	Thanks for the Memories	Dawn	73
53	2022	House of the Dragon	Joselyn Redwyne	83