Who were Odysseus' enemies?

During The Iliad, Odysseus' enemies were mainly members of the Trojan army, specifically Hector. The gods on the Trojan's side were also his enemies, notably Hera, Zeus (for a while), Ares, Hermes, Hephaestus and Apollo.

Note that many of the gods switch sides depending on which side was winning at the time.

During The Odyssey, Odysseus' biggest enemy becomes Poseidon, as Odysseus offends Poseidon by blinding his son Polyphemos. Other enemies Odysseus has include:

Polyphemus and the other cyclops,

Scylla and Charybdis,

Apollo (after slaughtering the cattle of HeliOS)

and

Penelope's Suitors.