Who are the antagonist in the odyssey?

In "The Odyssey," the primary antagonists are the suitors vying for Penelope's hand in marriage, led by Antinous and Eurymachus. They invade Odysseus's home, consume his resources, and disrespect his family during his long absence. Additionally, the god Poseidon acts as an antagonist, hindering Odysseus's journey home due to a personal grudge against him. These forces create significant obstacles for Odysseus as he strives to return to Ithaca.