Kathleen Marfell
| Year | Play | Rôle(s) |
| 1970 | Great Expectations | Miss Havisham |
| 1967 | The Happiest Days of Your Life | Miss Evelyn Whitchurch |
| 1965 | Blithe Spirit | Assistant Stage Manager |
| 1965 | Goodnight Mrs Puffin | Producer |
| 1964 | Spider's Web | Mildred Peake |
| 1963 | Waiting in the Wings | Producer; Topsy Baskerville |
| 1963 | Salad Days | Heloise; Anthea |
| 1962 | The Brontës | Producer |
| 1962 | Romanoff and Juliet | Assistant Stage Manager |
| 1962 | The Garden of Adonis | Lady Vaughan |
| 1961 | Breath of Spring | Producer |
| 1960 | Not In The Book | Producer |
| 1960 | The Fruits of Knowledge | Lady Melton |
| 1959 | Dear Delinquent | Producer |
| 1959 | Julius Caesar | Stage Manager |
| 1959 | An Italian Straw Hat | Piano Accompaniment |
| 1959 | The Vigil | Lady Procula, the Governor's wife; Stage Manager & Assistant Producer |
| 1958 | The Reluctant Debutante | Stage Manager |
| 1958 | Life with the Girls | Producer |
| 1957 | The Book of the Month | Joanna Halliday |
| 1956 | Witness for the Prosecution | Stage Manager |
| 1956 | Worlds Apart | Penelope Simmering (Jean's mother) |
| 1956 | The Noble Spaniard | Assistant Stage Manager |
| 1956 | The Confidential Clerk | Lady Elizabeth Mulhammer |
| 1955 | Two Gentlemen of Verona | Stage Staff |
| 1955 | The Applecart | Producer |
| 1955 | Ring Round the Moon | Sound Effects |
| 1954 | The River Line | Stage Gang |
| 1954 | Waters of the Moon | Mrs Whyte |
| 1951 | A Midsummer Night's Dream | Helena, in love with Demetrius |
| 1951 | Mary Blake | Producer |
| 1951 | Playbill | Producer |
| 1950 | Ten Little Niggers | Producer |
| 1950 | Tony | Muriel |
| 1949 | The First Gentleman | Miss Cornelia Knight |
| 1949 | Tony | Muriel |
| 1949 | The Winslow Boy | Grace Winslow |
| 1948 | The Shop at Sly Corner | Producer |
| 1948 | Frieda | Eleanor Dawson |
| 1947 | Vanity Fair | Miss Crawley |
| 1947 | Quiet Weekend | Mildred Royd |
| 1946 | Rebecca | Mrs Danvers |
| 1945 | Whiteoaks | Augusta, Lady Buckley |
| 1944 | Rookery Nook | Clara Popkiss |
| 1944 | The Middle Watch | Lady Hewitt |
| 1943 | Quiet Wedding | Mildred Royd |
| 1941 | Full House | Frynne Rodney |
| 1938 | The Scarlet Pimpernel | Comtesse de Tournai |
| 1937 | Indoor Fireworks | The Marchioness of York |
| 1937 | A School for Coquettes | Lady Amaranthe Allwill |
| 1937 | Distinguished Gathering | Lady Thalia Wilmer |
| 1936 | A Damsel in Distress | Alice Faraday |
| 1935 | A Hundred Years Old | Dona Marciala |
| 1934 | The House With the Twisty Windows | Anne Sorrell |
| 1933 | Berkeley Square | Marjorie Frant |
| 1932 | The Rising Generation | Member of the Orchestra (as Miss K Marfell) |