CREATE TABLE table_72609 ("Episode #" TEXT, "Country" TEXT, "City" TEXT, "Martial Art/Style" TEXT, "Masters" TEXT, "Original Airdate" TEXT)

Which masters fought in hapkido style?
SELECT "Masters" FROM table_72609 WHERE "Martial Art/Style" = 'Hapkido'
SELECT "Masters" FROM "table_72609" WHERE "Martial Art/Style" = 'Hapkido'