Orestes , Patroklos and Telamonian Aias - Characters, The Odyssey | The Odyssey by Homer- Summary, Themes & Characters - Novels PDF Download

Orestes 

Agamemnon's son; he kills Klytaimestra and her lover Aigisthos as vengeance for his father's death. When the gods meet at the beginning of the Odyssey, first on the agenda is the murder and whether it was warranted. This is no coincidence. See "Symbols, Imagery, Allegory" for more. 

Patroklos

Sometimes spelled Patroclus. One of the shades Odysseus sees in the Underworld. Patroklos was Achilleus' best friend. The Iliad tells us that after Trojan warrior Hektor killed Patroklos, Achilleus swore revenge—killing Hektor, and thereby sealing his own doom. (To learn more about this, check out our guide to the Iliad.) 

Telamonian Aias

Sometimes spelled Ajax. A Greek hero in the Trojan War whom Odysseus encounters in the Underworld. Aias killed himself after Odysseus was named a greater man than he, and still refuses to speak to his friend even after death. Odysseus is bummed about this: Aias, son of stately Telamon, could you then never even in death forget your anger against me, because of that cursed armor?(11.553-560).

In other words, it's probably enough to hold a grudge in life. You really don't need to hang onto it in death, too.