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Odysseus fought with the Greeks against the Trojans.
Calypso is the last one to keep Odysseus against his will on her island. The name of the island Calypso kept Odysseus on was Ogygia.
Hermes assisted Odysseus several times in his journey.
Poseidon. and he's not against him, he's just mad at him because he never thanks the gods, so he wants Odysseus to suffer.
Poseidon and Scylla work against Odysseus in "The Odyssey." Poseidon holds a grudge against Odysseus for blinding his son, Polyphemus, while Scylla is a sea monster that attacks Odysseus's men as they sail past her lair.
Calypso
It is believed that Poseidon is the most antagonistic god towards Odysseus in the epic poem "The Odyssey." Poseidon holds a grudge against Odysseus for blinding his son, the Cyclops Polyphemus, and continuously tries to thwart Odysseus' journey home by causing storms and obstacles.
Odysseus gave them money, villages, and respect.
Zeus
In Greek mythology, Poseidon is biased against Odysseus because Odysseus blinded his son, the cyclops Polyphemus. This act incited Poseidon's anger and led to his ongoing hostility towards Odysseus throughout his journey home from the Trojan War.
Antinous, one of the suitors, was the one who spoke out against Odysseus to the other suitors and wanted to kill him. He was the ringleader among the wooers.
Odysseus implies that he doesn't need the gods. Poseidon wants to prove to him that he does.