| Year | Production | Role | Venue |
| 1952 | A Midsummer Night's Dream | Hippolyta | Liverpool Playhouse, Liverpool |
| 1954 | The Duenna | Carlotta | Bristol Old Vic and Westminster Theatre, London |
| 1956 | The Comedy of Errors | Adriana | Arts Theatre, London |
| 1957 | Zuleika | Aunt Mabel | Saville Theatre, London |
| 1959 | The Love Doctor | Henrietta Argan | Piccadilly Theatre, London |
| 1960 | Follow That Girl | Mrs Gilchrist | Vaudeville Theatre, London |
| 1961 | Come As You Are | | Guildford |
| Out of My Mind | | Lyric Theatre, Hammersmith |
| 1962 | Little Mary Sunshine | Mary Potts ("Little Mary Sunshine") | Comedy Theatre, London |
| 1963 | Virtue in Danger | Berinthia | Mermaid Theatre and Strand Theatre, London |
| 1964 | Home and Beauty | Victoria | Croydon |
| 1965 | How's the World Treating You? | Violet/Nell/Rover | Arts Theatre and Wyndham's Theatre, London (1965) and Music Box Theatre, New York City (1966) |
| 1968 | Darling of the Day | Alice Challice | George Abbott Theatre, New York City |
| Love Match | Queen Victoria | Ahmanson Theatre, Los Angeles |
| 1969 | The Caucasian Chalk Circle | Mother-in-law | Chichester Festival Theatre |
| The Country Wife | Lady Fidget |
| The Magistrate | Agatha Posket | Chichester Festival Theatre and Cambridge Theatre, London |
| 1971 | First Impressions | Mrs Bennet | Birmingham Repertory Theatre |
| 1972 | Cowardy Custard | | Mermaid Theatre, London |
| 1973 | Dandy Dick | Georgina Tidman | Chichester Festival Theatre and Garrick Theatre, London |
| 1975 | The Cherry Orchard | Madame Ranevskaya | Bristol Old Vic |
| Othello | Emilia | Chichester Festival Theatre |
| Made in Heaven | Martha Avon |
| 1976 | 1600 Pennsylvania Avenue | All of the First Ladies | Mark Hellinger Theatre, New York City |
| The Rivals | Mrs Malaprop | Royal Exchange Theatre, Manchester |
| Zack | Mrs Munnings |
| 1977 | On Approval | Maria Wislack | Vaudeville Theatre, London |
| 1978 | The Grand Duchess of Gerolstein | The Grand Duchess | Collegiate Theatre, Camden, London |
| Gracious Living | Daisy Tuttle | Eisenhower Theatre, Washington, D.C. |
| Semmelweiss | Julia |
| 1979 | The Schoolmistress | Miss Dyott | Royal Exchange Theatre, Manchester |
| And a Nightingale Sang... | Peggy Stott | Queen's Theatre, London |
| 1980 | The Pirates of Penzance | Ruth | Delacorte Theater, New York City |
| 1981 | Say Hello to Harvey | | Toronto, Canada |
| 1982 | Noises Off | Dotty Otley | Lyric Theatre, Hammersmith and Savoy Theatre, London |
| 1983 | When the Wind Blows | | Whitehall Theatre, London |
| 1984 | Richard III | Queen Margaret | Royal Shakespeare Company |
| 1985 | Henry V | Mistress Quickly |
| 1986 | When We Are Married | Maria Helliwell | Whitehall Theatre, London |
| 1988 | Candide | Old Lady | The Old Vic, London |
| 1989 | Come for the Ride | (one-woman show) | UK tour |
| 1992 | Talking Heads | Miss Schofield/Miss Ruddock | Comedy Theatre, London |
| Carousel | Nettie Fowler | National Theatre, London |
| 1994 | Mr and Mrs Nobody | Carrie Pooter | Greenwich Theatre, London |
| The Rivals | Mrs Malaprop | Chichester Festival Theatre and Albery Theatre, London |
| The Schoolmistress | Miss Dyott | Chichester Festival Theatre |
| 1996 | Beatrix | Beatrix Potter | Minerva Theatre, Chichester and UK tour |
| 1999–2001 | The Importance of Being Earnest | Lady Bracknell | Chichester Festival Theatre and Theatre Royal Haymarket, London (1999),Australian tour (2000) and Savoy Theatre, London (2001) |
| 2002 | Wild Orchids | Duchess | Chichester Festival Theatre |
