CREATE TABLE table_30534 ("No." FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production code" TEXT, "U.S. viewers  ( million ) " TEXT)

Who directed the episode watched by 2.01 million US viewers?
SELECT "Directed by" FROM table_30534 WHERE "U.S. viewers (million)" = '2.01'
SELECT "Directed by" FROM "table_30534" WHERE "U.S. viewers (million)" = '2.01'