However, Cowper is possibly best known for playing D.S Helen Diamond in four series of the BBC's police drama, Dangerfield, between 1996 and 1999.
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She has also played the recurring character Gina Williams—the sister of Cindy Beale (Michelle Collins)—in BBC's EastEnders on three separate occasions—she first appeared in 1998, then returned briefly in 1999 and she reprised the role again in 2007.
William Cowper | Nicola | Nicola River | Nicola Kuperus | Charles Cowper | Thompson-Nicola Regional District | William Cowper Alexander | Nicola Scafetta | Nicola Pisano | Nicola Griffith | Nicola Bryant | Fraser-Nicola | Earl Cowper | Sherard Cowper-Coles | Nicola Salmoria | Nicola Sabbatini | Nicola Philippaerts | Nicola Pellegrini | Nicola Pagett | Nicola Luisotti | Nicola King | Nicola Kawana | Nicola Fago | Nicola De Angelis | John Cowper Powys | Franklin Nicola | San Nicola Manfredi | San Nicola in Carcere | San Nicola alla Carità, Naples | San Nicola alla Caritá |