What letters are in the English but not the Italian alphabet?

The letters j, k, w, x and y are letters that may be described as being in the English, but not the Italian, alphabet. The letters nevertheless do get used since they may be needed for foreign loan Words, such as jazz, karaoke, walkie-talkie, xeres and yuppie. Their use introduces five consonants to an alphabet that traditionally preserves five vowels and 21 consonants.