CREATE TABLE table_4556 ("Actor/actress" TEXT, "Character" TEXT, "Rank" TEXT, "Tenure" TEXT, "Episodes" TEXT)

What rank did actor Aaron Pedersen's character have?
SELECT "Rank" FROM table_4556 WHERE "Actor/actress" = 'aaron pedersen'
SELECT "Rank" FROM "table_4556" WHERE "Actor/actress" = 'aaron pedersen'