Who disguises Odysseus?

Athena, the goddess of wisdom and warfare, disguises Odysseus when he returns to Ithaca after his long journey home. She transforms him into an old beggar to help him gather information about the situation in his household and to plan his revenge against the suitors vying for his wife, Penelope. This disguise allows Odysseus to navigate his home without being recognized, ensuring his safety as he strategizes.