Helios is the Greek god of the sun in Homer's *The Odyssey*. He is a powerful deity who is known for his bright light and his fiery chariot that he drives across the sky each day.

Here's what you need to know about Helios in *The Odyssey*:

* His Role: Helios is most famous for his cattle, which are sacred to him and graze on the island of Thrinacia. When Odysseus's men, desperate for food, kill and eat some of Helios's cattle, the god is outraged.

* His Importance: Helios is crucial to the plot of *The Odyssey* because his anger causes Zeus to unleash a storm that destroys Odysseus's ship and leaves him stranded on Calypso's island for many years.

* His Revenge: Helios demands justice for the slaughter of his sacred cattle, and Zeus ultimately grants him this justice by ensuring that all of Odysseus's men perish except for Odysseus himself.

Helios's wrath highlights the importance of respecting the gods and their sacred possessions in ancient Greek mythology.