CREATE TABLE table_64915 ("Actor" TEXT, "Character" TEXT, "Soap Opera" TEXT, "Years" TEXT, "Duration" TEXT)

Who's the actor for the Archers having a character of Martha Woodford?
SELECT "Actor" FROM table_64915 WHERE "Soap Opera" = 'the archers' AND "Character" = 'martha woodford'
SELECT "Actor" FROM "table_64915" WHERE "Character" = 'martha woodford' AND "Soap Opera" = 'the archers'