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| Año | Título | Personaje | Valoración |
|---|---|---|---|
| 2011 | Juego de tronos | Old Nan | ★★★★☆ |
| 2009 | A Bit of Tom Jones? | Nanny | ★★☆☆☆ |
| 2009 | Framed | Edith Sellwood | ★★☆☆☆ |
| 2009 | Quiero ser humano | ★★★★☆ | |
| 2008 | Gavin & Stacey Christmas Special 2008 | Doris O'Neill | ★★★★★ |
| 2008 | Flick | Mrs. Charles | ★★☆☆☆ |
| 2007 | Corredor de fondo | Libby's Grandmother | ★★★☆☆ |
| 2007 | The Baker | Anne Jones | ★★★☆☆ |
| 2007 | Gavin & Stacey | ★★★★☆ | |
| 2006 | TARDISodes | Grandma Connolly | ☆☆☆☆☆ |
| 2005 | Doctor Who | ★★★★☆ | |
| 2005 | Doctor Who | Grandma Connolly | ★★★★☆ |
| 2004 | The Mighty Boosh | Nanatoo | ★★★★☆ |
| 2004 | Tea and Biscuits with Maggie Pritchard | ☆☆☆☆☆ | |
| 2003 | Eyes Down | Kay | ★★★☆☆ |
| 2002 | High Hopes | ☆☆☆☆☆ | |
| 2001 | Fun at the Funeral Parlour | ★★★★☆ | |
| 2000 | Doctors | ★★☆☆☆ | |
| 1999 | El sueño de Joseph Lees | Aunt Margaret | ★★★☆☆ |
| 1997 | The Heart Surgeon | Mrs. Hughes | ★★★☆☆ |
| 1994 | A Mind to Kill | ☆☆☆☆☆ | |
| 1992 | Elenya | ☆☆☆☆☆ | |
| 1992 | B&B | Mrs Evans | ★★★☆☆ |
| 1992 | Sherlock Holmes: Incidente en las Cataratas Victoria | Mrs. Hudson | ★★★☆☆ |
| 1991 | A Mind To Kill | Sarah Hammond | ★★★☆☆ |
| 1991 | Sherlock Holmes y la Prima Donna | Mrs. Hudson | ★★★☆☆ |
| 1986 | Lovejoy | Mrs Thorn | ★★★★☆ |
| 1986 | Casualty | Mrs. Treaver | ★★★☆☆ |
| 1984 | The District Nurse | ★★★☆☆ | |
| 1980 | Breakaway | ☆☆☆☆☆ | |
| 1978 | Doble triunfo | Headmistress | ★★★★☆ |
| 1978 | Glenys | Sarah | ☆☆☆☆☆ |
| 1978 | A Horseman Riding By | ★★★☆☆ | |
| 1978 | Blake's 7 | ★★★★☆ | |
| 1978 | Blake's 7 | Arbiter | ★★★★☆ |
| 1977 | Secret Army | Candide Customer | ★★★★☆ |
| 1976 | The Ghosts of Motley Hall | ★★★☆☆ | |
| 1975 | After the Solo | Mrs. Peters | ☆☆☆☆☆ |
| 1975 | Angels | ★★☆☆☆ | |
| 1975 | Shadows | ★★★☆☆ | |
| 1974 | Joe's Ark | Woman Customer | ☆☆☆☆☆ |
| 1973 | Last of the Summer Wine | ★★★★☆ | |
| 1973 | Seven of One | ★★★★☆ | |
| 1972 | Dead of Night: A Woman Sobbing | Fay | ☆☆☆☆☆ |
| 1972 | The Protectors | Nurse | ★★★☆☆ |
| 1972 | Dead of Night | ★★★★☆ | |
| 1971 | Brett | ★★★☆☆ | |
| 1971 | The Rivals of Sherlock Holmes | Receptionist | ★★★★☆ |
| 1970 | Holocausto radiactivo | Mrs. Joan Simpson | ★★★☆☆ |
| 1970 | Menace | ☆☆☆☆☆ | |
| 1968 | Doctor Who: Fury from the Deep | Megan Jones | ★★★★☆ |
| 1968 | The First Lady | ☆☆☆☆☆ | |
| 1966 | Softly, Softly | ★★★☆☆ | |
| 1964 | Crossroads | ★★★☆☆ | |
| 1963 | Doctor Who | Megan Jones | ★★★★☆ |
| 1962 | Z-Cars | ★★★★☆ | |
| 1962 | Suspense | ★★★☆☆ | |
| 1960 | After the Funeral | Ailwen Roberts | ☆☆☆☆☆ |
| 1959 | No Hiding Place | ★★☆☆☆ | |
| 1955 | Dixon of Dock Green | Jenny | ★★★☆☆ |
Películas destacadas de Margaret John
Estas son las películas más destacadas en las que ha trabajdo:
Series
