Filmography
| Year | Title | Role | Notes |
|---|---|---|---|
| 1963 | Sentimental Agent, TheThe Sentimental Agent | Francy | Episode: "A Very Desirable Plot" |
| 1964 | Festival | Adriana | Episode: "The Comedy of Errors" |
| 1964 | Armchair Theatre | Anita Fender | Episode: "The Hothouse" |
| 1965 | ITV Play of the Week | Bianca | Episode: "Women Beware Women" |
| 1965–1968 | Avengers, TheThe Avengers | Emma Peel | 51 episodes |
| 1968 | A Midsummer Night's Dream | Helena | |
| 1969 | Mini-Killers | Short film | |
| 1969 | Assassination Bureau, TheThe Assassination Bureau | Sonya Winter | |
| 1969 | On Her Majesty's Secret Service | Tracy Di Vicenzo | |
| 1970 | ITV Saturday Night Theatre | Liz Jardine | Episode: "Married Alive" |
| 1970 | Julius Caesar | Portia | |
| 1971 | Hospital, TheThe Hospital | Barbara | |
| 1973 | Theatre of Blood | Edwina Lionheart | |
| 1973–1974 | Diana | Diana Smythe | 15 episodes |
| 1974 | Affairs of the Heart | Grace Gracedew | Episode: "Grace" |
| 1975 | In This House of Brede | Dame Philippa | TV movie |
| 1977 | Three Piece Suite | Various | 6 episodes |
| 1977 | A Little Night Music | Charlotte Mittelheim | |
| 1979 | Oresteia | Eloise | TV movie |
| 1980 | Marquise, TheThe Marquise | Eloise | TV movie |
| 1981 | Hedda Gabler | Hedda Gabler | TV drama |
| 1981 | Great Muppet Caper, TheThe Great Muppet Caper | Lady Holiday | |
| 1982 | Evil Under the Sun | Arlena Marshall | |
| 1982 | BBC Play of the Month | Rita Allmers | Episode: "Little Eyolf" |
| 1982 | Hallmark Hall of Fame | Christine Vole | Episode: "Witness for the Prosecution" |
| 1983 | King Lear | Regan | TV drama |
| 1985 | Bleak House | Lady Honoria Dedlock | 7 episodes |
| 1986 | Worst Witch, TheThe Worst Witch | Miss Constance Hardbroom | |
| 1987 | Snow White | Evil Queen | |
| 1987 | A Hazard of Hearts | Lady Harriet Vulcan | TV movie |
| 1989 | Play on One, TheThe Play on One | Lydia | Episode: "Unexplained Laughter" |
| 1989 | Mother Love | Helena Vesey | TV mini-series |
| 1989–2004 | Mystery! | Host | TV series |
| 1992 | Mrs. 'Arris Goes to Paris | Mme. Colbert | TV movie |
| 1993 | Road to Avonlea | Lady Blackwell | Episode: "The Disappearance" |
| 1993 | Running Delilah | Judith | TV movie |
| 1993 | Screen Two | Baroness Frieda von Stangel | Episode: "Genghis Cohn" |
| 1994 | A Good Man in Africa | Chloe Fanshawe | |
| 1995 | Zoya | Evgenia | TV movie |
| 1995 | Haunting of Helen Walker, TheThe Haunting of Helen Walker | Mrs. Grose | TV movie |
| 1996 | Moll Flanders | Mrs. Golightly | TV movie |
| 1996 | Samson and Delilah | Mara | TV movie |
| 1997 | Rebecca | Mrs. Danvers | TV miniseries |
| 1998 | American, TheThe American | Madame de Bellegarde | TV movie |
| 1999 | Parting Shots | Lisa | |
| 1998–1999 | The Mrs Bradley Mysteries | Mrs. Adela Bradley | 5 episodes |
| 2000 | In the Beginning | Mature Rebeccah | |
| 2001 | Victoria & Albert | Baroness Louise Lehzen | TV movie |
| 2003 | Murder in Mind | Jill Craig | Episode: "Suicide" |
| 2003 | Last King, TheThe Last King | Queen Henrietta Maria | Episode: "1.1" Episode: "1.3" |
| 2005 | Heidi | Grandmamma | |
| 2006 | Painted Veil, TheThe Painted Veil | Mother Superior | |
| 2013 | Game of Thrones | Olenna Tyrell | Season 3 |
| 2013 | Doctor Who | Winifred Gillyflower | Episode: "The Crimson Horror" |
Read more about this topic: Diana Rigg