A 1991 TV film starring an Irish born actress known for her role as Detective Sergeant Jane Penhaligon in Cracker, was based on a novel by what author?
Geraldine Somerville Geraldine Margaret Agnew-Somerville (born 19 May 1967) is an Irish born actress known for her role as Detective Sergeant Jane Penhaligon in "Cracker" (1993–95), for which she was nominated for the 1995 BAFTA TV Award for Best Actress, and for playing Lily Potter in the "Harry Potter" film series. Her other film appearances include "Gosford Park" (2001), "My Week with Marilyn" (2011) and "Grace of Monaco" (2014).
Siân Phillips Dame Jane Elizabeth Ailwên Phillips, DBE (born 14 May 1933), known professionally as Siân Phillips ( ), is a Welsh actress, author and singer.