Question: What British actress born in May started in a television series set in a fictional Sussex coastal town? 
Sentence (from "Mapp and Lucia (1985 TV series)"): It was produced by London Weekend Television, filmed in Rye (on which Benson based Tilling) and neighbouring Winchelsea in the 1980s, and starred Prunella Scales as Mapp, Geraldine McEwan as Lucia, Nigel Hawthorne as Georgie, and Denis Lill as Major Benjy.
Relevant evidence: Yes