Son of Zeus. At the start of the series Herc was a renegade due to siding with the Hulk in World War Hulk. His attempts to reform himself into a bit more of a "thinker" and play role model to Amadeus Cho quickly grow muddled as he is constantly drawn into the power struggles of the gods including his old enemies from Olympus.
The constantly proclaimed "seventh smartest" actually possibly eight or tenth, as Dr. Banner hints that he was lying to Cho person on the planet. His family was murdered in an explosion and he has been on the run since. Drawn to Hercules for protection following the disaster of World War Hulk. In the process of finding what happened to his family draws surprising connections to the Olympian gods. Famous for his ability to make almost infinite mathematical complex calculations within moments.
Dead Little Sister: His little sister Maddie was killed along with their parents when their house was blown up. He later finds out she is alive when he visits his parents in Heaven and learns that she isn't there. Her fate is still unknown.
The Hero: Due to events toward the end and what the plan certain gods have for him.
Insufferable Genius: Early on. One of his storylines has him slowly growing out of this. Still, was a pretty hard blow when he found out that he is NOT the seventh smartest, since the result came out when some of Earth's top brains were in space eg Bruce Banner and Hank Pym. When he saw Pym's laboratory and its capabilities, he said:
Cho: Eighth. Eighth is good. I can live with eighth.
Then he sees Banner's Bannertech, just has to take some of it, and finds out that he (Cho) is actually tenth smartest.
Meaningful Name: "Amadeus" means "love god" and Athena tells him he must sacrifice his love for Delphyne for his love of the gods. Amadeus says his parents picked the name because they were Methodists and Mozart fans.
The goddess of wisdom, battle, heroic endeavor, and half-sister to Hercules. In ancient times she aided many heroes including Hercules by either providing advice, magical items or both. She aids Hercules in modern times and turns out to be responsible for many of the events in Hercules and Cho's lives across the ages.
Trickster Mentor: Tries to use Amatsu-Mikaboshi to destroy the universe in the hopes that order will again rise from chaos with a better ruler (Hercules) in place.
A decendent of the Gorgons. She started out as an Amazon general and slave to the previous Amazon queen Artume. She fell in love with Cho and opposed Artume's plan to conquer the world killing her in the end. Thanks to this she became the new queen of the Amazons, but was forced to put her relationship with Cho on hold due to Amazonian custom and her alliance with Hera. She lacks the traditional petrification gaze since it runs through only the Medusa line.
Rage Against the Heavens: Sides with Hera to destroy Athena and remove the Gorgon curse, but has little loyalty toward any of the Olympians and won't hesitate to pull a gun on them when she disagrees with their actions.
Taken for Granite: Averted. Not all Gorgons have this power, only the descendants of Medusa. She briefly gains this ability and uses it on Athena.
Too Dumb to Live: Borderline, she constantly threatens gods who could destroy her with ease with weapons that should not hurt them.
Zettai Ryouiki: Due to her trademark outfit of a short plaid skirt and stockings.
Girl Friday: To Amadeus after he becomes CEO of the Olympus Group.
Ye Olde Butcherede Englishe: Averted. As the goddess of youth, she uses modern English unlike her fellow Olympians. However, this causes the Avengers to think she's just a human pretending to be Olympian and ignore her pleas to help Hercules.
Queen of the gods, goddess of marriage and main antagonist for the middle part of the series. She is the stepmother to Hercules and Athena. She regards them as deadly enemies and like in ancient times seeks to destroy them for perceived wrongs done in the past. With the death of Zeus she inherited both command of Olympus and his powerful Thunderbolt making her more dangerous than ever.
A storm-giant/monster created by Gaea to avenge the defeat of the giants in the Gigantomachy by destroying the Olympians. He was defeated by Zeus thousands of years ago and imprisoned in Tartarus. Released to serve Hera, but still has his own agenda.
One-Winged Angel: In ancient times was much more powerful and capable of matching Zeus. In modern times he has been reduced to a much weaker, but still very powerful form. He never does achieve his true power.
Restraining Bolt: A bracelet to keep him from turning on Hera and killing her. It eventually fails, and he does kill both her and Zeus.
King of the gods and in one way or another related to just about all the characters in the series. Killed before events in the series, but is restored a little over half-way through as a kid with no memories. Regains his throne and full power by end of the series.
Tropes Associated with Zeus
Authority Equals Asskicking: Just ask the Hulk. He also curbstomped the Avengers, including Thor, without trying during Roger Stern's Avengers run.
Coldblooded Torture: After defeating the Hulk, he let a vulture repeatedly eat his entrails, and sadistically gloated about it. More significantly, he did the same to Prometheus for a far longer time for having the audacity to give mankind fire.
Cruel Mercy: Allows Hercules to rescue the Hulk because he considers simply being the Hulk to be greater than any punishment he could give him.
Kick the Son of a Bitch: After he temporarily loses his powers, he completely emotionally breaks down due to his extremely pompous nature, is reduced to a hobo living on the streets, and is kicked in the groin and beaten up by Electra when attempting to hit on her.
Kid Sidekick: After his memory is erased temporarily replaces Cho as Hercules's sidekick.
Vetinari Job Security: Pluto, Hera, Apollo and Athena all either replaced or are considered replacements for Zeus as the Lord of Olympus. All are either crazy, completely cold, or more evil than Zeus.
The God of War (the more violent aspects of it compared to Athena) and perhaps Hercules' greatest rival. In recent times, he has become less of a villain and more of an extremly violent anti-hero. A former member of Iron Man's Mighty Avengers and Green Goblin's Dark Avengers. Currently dead.
Tropes Associated with Ares
Adaptational Badass: Ares in the Classical Mythology got his ass kicked nearly every time he appeared. This guy is someone strong enough to rip apart a robot he couldn't dent with his weapons.
Jerk Ass: Well, duh. He is the God of War and loves to slaughter, during Dark Reign he killed dozens of HAMMER-recruits and drilled the survivors by firing on them with a freaking Gatling Gun. He is definitely not a nice guy.
The Worf Effect: For the Avengers, often toted as being a tactical genius and near the same power class as Hercules. Most often the first to go down.
The God of the Dead (not Death), Pluto is the brother of Zeus & Neptune, and ruler of the Olympian Underworld after the drew straws for what they would rule. Eventually wanting more then just this, over the years, Pluto has become an enemy to Hercules as he seeks more power.
First introduced in the Ares mini as the Japanese god of evil where it killed Zeus and laid waste to Olympus before being stopped. Released from its prison within Yomi to use his shapeshifting powers to aid against the Skrull gods. It is thought to have been killed, but survived and becomes the biggest villain of the entire series. Toward the end revealed to be an embodiment of the primordial chaos that preceded creation.
Tropes Associated with Mikaboshi
Ass Kicking Equals Authority: Gained control of the Skrull slave gods by defeating Sl'gur't, the Skrull god of war, and retained command by consuming the power of every captured god.
Big Bad: For the "Chaos War" event that concluded the series.
Black Magic: His powers draw on this, and Olympians are weak to it.