CREATE TABLE table_24476 ("No. in series" TEXT, "No. in season" TEXT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT)

Who directed the episode titled 'Jack and the Zombies'?
SELECT "Directed by" FROM table_24476 WHERE "Title" = 'Jack and the Zombies'
SELECT "Directed by" FROM "table_24476" WHERE "Title" = 'Jack and the Zombies'