1. The god of the sky and light and the son of Isis and Osiris. In earlier myth he was the brother of Set, and son of Ra. His mother impregnated herself by the dead Osiris, then hid Horus. When he was grown, he avenged his father's death, driving away Set. In the battle, he lost his eye, but regained it thanks to the god Thoth. Thus Horus came to rule over the earth. He was known to have two faces, that of the falcon, Harsiesis, and that of a child, Harpocrates.

2. Considered the most beautiful mortal woman during the Age of Heroes. Helen was the daughter of Zeus and Leda, and her siblings were Castor, Polydeuces (or Pollux), and Clytemnestra. When Helen married Menelaus, the king of Sparta, Helen's father Tyndareus forced the Greek kings to swear an oath to fight for her if she were kidnapped. When she was abducted by (or eloped with) Paris, a prince of Troy, the whole Greek world plunged into the Trojan War. For this reason, Christopher Marlowe had Doctor Faustus refer to Helen as 'the face that launched a thousand ships.'

3. Also called the Asterion, it was a half-man, half-bull monster kept in the Labyrinth on Crete by King Minos. Minos prayed to Poseidon to send a snow-white bull as a sign of support during Minos' quarrel with his brothers for the throne of Crete, but instead of sacrificing the animal to the sea god, Minos kept it for himself. Angered, Poseidon caused Minos' wife Pasiphaë to lust after the bull, so Daedalus built her a wooden cow so she could mate with the bull. The product of this encounter was the Minotaur (lit. 'Bull of Minos'). After Minos' son Androgeus was killed by Athenians, Minos demanded seven Athenians male youths and seven Athenian female youths, to be selected by lots every seven or nine years (accounts vary) as retribution; these victims were fed to the Minotaur. On the third drawing of the lots, the Athenian hero Theseus volunteered to vanquish the beast; with the help of Minos' daughter Ariadne, who gave Theseus a ball of string so he could find his way out of the Labyrinth, Theseus slew the Minotaur. On the return voyage from Crete, Theseus forgot to change his sails from black back to white, and his father Aegeus jumped into the sea, believing his son had died.

4. The foremost among the Knights of the Round Table, an expert swordsman and jouster who is the primary figure of the Vulgate Cycle. The son of King Ban of Benwick, Lancelot was raised by the Lady of the Lake, which earned him the epithet 'du Lac' or 'of the Lake.' Another of his epithets is 'Knight of the Cart,' which he earned for riding in a dwarf's cart while searching for Guinevere after she was kidnapped. Aside from his adulterous affair with Queen Guinevere, Lancelot is known for fathering Sir Galahad with Elaine of Corbenic, who had tricked Lancelot into sleeping with her by disguising herself as Guinevere. After his betrayal of Arthur was revealed, Lancelot fled to France and was therefore not present during the Battle of Camlann.

5. The daughter of Ra, she predated the universe and served over the creation of it, ensuring balance between everything. Primarily seen as the keeper of order, Ma'at was responsible for seasons, day and night, rainfall, and star movements. A symbolic offering of Ma'at, in the form of a statuette was given to the gods, as Ma'at encompassed all other offerings. Ma'at's aspect as god of justice also showed through her role in death ritual, where her ostrich feather was weighed against the hearts of the dead in the underworld. Judges wore effigies of Ma'at, and the supreme head of courts was said to be the priest of Ma'at.

6. A Knight of the Round Table who accompanies Sir Galahad and Sir Bors on the successful quest for the Holy Grail. Percival is one of the sons of King Pellinore. He was raised in the woods by his (unnamed) mother until he turned 15. Although Percival fails to identify the Holy Grail during an early encounter with the wounded Fisher King that involved a bleeding lance, he later heals the Fisher King's wound at the end of the quest. In some stories, Percival loves a woman named Blanchefleur, and he is named as the father of Lohengrin in many Germanic sources.

7. The wife of King Priam, and therefore the Queen of Troy, during the Trojan War. Her children included Paris - who kidnapped Helen - and Hector, the great Trojan warrior who was slain by Achilles. In Book VI of the Iliad, she leads the Trojan women in prayer to Zeus on behalf of the Trojan warriors. After the war, Hecuba was grief-stricken upon learning of the death of her youngest daughter Polyxena, and she was given to Odysseus as a slave.

8. A Knight of the Round Table and the son of Morgause and King Lot of Orkney, making him the nephew of King Arthur. He is the hero of the Pearl Poet's 14th-century romantic epic Sir Gawain and the Green Knight, in which Gawain's loyalty and resolve are tested by the title Green Knight (secretly Lord Bertilak), who survives his beheading at the hands of Gawain and returns a year later to return the favor. Gawain's brothers Gareth and Gaheris are killed during Lancelot's rescue of Queen Guinevere, sending Gawain into a frenzy.

9. Husband of Isis, father of Horus, and brother of Set, Osiris served as god of the underworld and protector of the dead. In addition to his role as the chief and judge of the underworld (as a result of the above-mentioned murder by Set), Osiris also served as a god of vegetation and renewal; festivals honoring his death occurred around the time of the Nile flood's retreat. Statues representing him were made of clay and grain, which would then germinate. Osiris was represented either as a green mummy, or wearing the Atef, a plumed crown.

10. A character who goes by many other names, among them Nimue and Vivien. In many stories, the Lady of the Lake is responsible for bestowing Excalibur upon King Arthur. She also gave Merlin his powers of sorcery and raised Sir Lancelot after his father's death. The Lady of the Lake is frequently associated with the isle of Avalon and is sometimes conflated with Morgan le Fay.

11. The wife of Priam, she suffers the loss of most of her children but survives the fall of Troy. She is later turned into a dog.

12. The three-headed (or, according to Hesiod's Theogony, fifty-headed) dog who guarded the gates to the Underworld. A child of Typhon and Echidna, Cerberus is described as a hellhound with a mane of snakes, the claws of a lion, and the tail of a deadly snake. As Heracles' twelfth and final labor, he had to bring Cerberus back from the Underworld, which he did following an intense wrestling match. Prior to the task, Heracles was instructed in the Eleusinian Mysteries, and freed Theseus from being stuck on a chair in Hades. In Virgil's Aeneid, the Cumaean Sibyl gives Cerberus three drugged honey cakes so that she and Aeneas can enter the Underworld.

13. This son of Laertes is known for his cleverness and glib tongue. His accomplishments include a successful night raid against King Rhesus, winning the armor of Achilles, and engineering the famous Trojan Horse. His ten-year trip home to Ithaca (where his wife, Penelope, awaits) is the subject of the Odyssey.

14. The Egyptians believed that the soul had three components, the ba, ka, and akh, each of which had different roles after death. The ka remained near or within the body (which is why mummification was required). The ba went to the underworld where it merged with aspects of Osiris, but was allowed to periodically return (which is why Egyptian tombs often contained narrow doors). The akh could temporarily assume different physical forms and wander the world as a ghost of sorts. In the underworld, the ba was subjected to the Judgment of Osiris in the Hall of Double Justice, where the heart of the deceased was weighed against Ma'at, commonly represented as an ostrich feather.

15. The first human woman in Greek mythology. Hephaestus sculpted her from clay as a punishment for humanity after Prometheus stole fire from the gods. The primary myth of Pandora relates how she released all the evils of the world by opening a jar ('Pandora's Box'), and when she closed the lid only hope remained within. Pandora married the Titan Epimetheus, and their daughter Pyrrha survived the Greek flood with her husband Deucalion.

16. Personification of the midday sun, he was also venerated as Atum (setting sun) and Khepri (rising sun), which were later combined with him. He traveled across the sky each day and then each night, the monster Apep would attempt to prevent his return. Other myths held that Ra spent the night in the underworld consoling the dead. The god of the pharaohs, from the fourth dynasty onward all pharaohs termed themselves 'sons of Ra,' and after death they joined his entourage. He was portrayed with the head of a falcon, and crowned with the sun disk.

17. The king of Troy and son of Laomedon, he has 50 sons and 12 daughters with his wife Hecuba (presumably she does not bear them all), plus at least 42 more children with various concubines. Neoptolemus, the son of Achilles, kills him in front of his wife and daughters during the siege of Troy.

18. A sorceress from the island of Colchis; her father was King Aeëtes, and her aunt was the witch Circe. Medea encountered the hero Jason when he and the Argonauts came to Colchis in search of the Golden Fleece, and she helped him yoke fire-breathing oxen and sow dragon's teeth. Medea left Colchis with Jason, and on the voyage home she killed both her brother Absyrtus and the giant bronze automaton Talos. She and Jason had several children together, but Jason ultimately left Medea for the princess Glauce; in vengeance, she killed two of her children and fled on a golden chariot.

19. This daughter of Priam and Hecuba has an affair with Apollo, who grants her the gift of prophecy. Unable to revoke the gift after they quarrel, Apollo curses her by preventing anyone from believing her predictions. Among her warnings is that the Trojan horse contains Greeks. After Troy falls she is given to Agamemnon, who tactlessly brings her home to his wife Clytemnestra. Clytemnestra and her lover Aegisthus then kill Agamemnon and Cassandra, leaving Agamemnon's son Orestes (egged on by his sister Electra) to avenge the deaths and kill Clytemnestra and Aegisthus.

20. A hybrid monster who was also a child of Typhon and Echidna. She is most commonly described as a lioness with a goat's head protruding from her back and a tail that ended in a snake's head. She was a fire-breathing menace to Lycia until Bellerophon slew her on orders from King Iobates. Flying on the back of Pegasus, Bellerophon shot at the Chimera and ultimately killed the beast by affixing a block of lead to his spear and causing the Chimera to melt the block with her fiery breath, suffocating her in the process.

21. A Knight of the Round Table renowned for his purity and honor. Galahad is the illegitimate son of Sir Lancelot and King Pelles's daughter Lady Elaine of Corbenic. Sir Galahad is the only member of Arthur's corps who can sit in the Siege Perilous, a seat at the Round Table set aside by Merlin for the knight who would complete the quest for the Holy Grail. Galahad's quest for the Holy Grail, which he completed alongside Sir Percival and Sir Bors, ended when he encountered the Fisher King, who asked him to take the chalice to Sarras. Galahad is supposedly descended from the brother-in-law of Joseph of Arimathea, who later visits him and allows him to ascend to Heaven.

22. A princess of Troy, one of the children of King Priam and Queen Hecuba. She and her twin brother Helenus were both priests of Apollo and thus blessed with the gift of prophecy; however, after Cassandra spurned the advances of Apollo, he cursed her to never have her prophecies believed. During the Trojan War, Cassandra was raped in the Temple of Athena by Ajax the Lesser, which led Athena to wreck his ship on his journey home. After the war, Cassandra was made the concubine of Agamemnon, and the two were killed by Clytemnestra and Aegisthus when they returned to Mycenae.

23. Also known as Baldur. The fairest of the Aesir, he is the god of light, joy, and beauty. He dreamed of his own death, so Frigga extracted promises from everything not to harm Balder, but she skipped mistletoe. Loki tricked Balder's blind brother Hoder into killing him with a spear of mistletoe.

24. The king of Mycenae, Agamemnon shares supreme command of the Greek troops with his brother, Menelaus. An epithet of his, 'king of heroes,' reflects this status. As a commander, however, he often lacks good public relations skills, as shown by his feud with Achilles and by his ill-considered strategy of suggesting that all the troops go home. Upon his return home, Agamemnon is murdered by his wife, Clytemnestra, and her lover, Aegisthus.

25. Created in opposition to the forces of Ma'at, Set (termed Typhon by Plutarch) fought the demon Apopis each day, emerging victorious, symbolic of the struggle of forces that brought harmony. In later times, this struggle led Set to be associated with the serpent itself, and Set became the personification of violence and disorder, and the cause of all disasters. Having killed his brother Osiris, Set did battle with Osiris' son Horus, being emasculated in the fight. His cult was diminished over time, due to reaction against violence. His effigies were destroyed by some, while others were changed into representations of Amon, by replacing the ears with horns.