Well, glad to see more discussion here. Going to continue with a few more Norse Gods.
Norse God of the Oceans, the bringer of sea storms and the lord of those who die at sea. Or at least some of them; his wife Ran tends to go out and find drowning men and women, then drags their souls over to their Hall beneath the sea, when another psychopomp hasn't gotten to them first. Aegir has a strong rivalry with Poseidon, and is worshipped by a few rogue Atlanteans.
Norse God of Beauty. Still Dead.
Norse Goddess of Love and Fertility. Also a powerful sorceress and enchantress in her own right, who taught the arts of Vanir witchcraft to the Aesir. While she is a goddess of love and an enchantress, she averts most of the "Evil Temptress Witch" stereotypes, first by being a fan of romance and a faithful wife to her husband, the Aesir god of sunlight, Odur, and second by being a formidable warrior in her own right. She is the patron of women who die in battle, greeting them in her own hall, Sessrumnir, which lies beside Valhalla. She did have a brief heroic career of her own during the Silver Age, with a friendly rivalry with Lady Liberty, but her duties called her back to Asgard.
Queen of the Gods. One of Odin's several wives, and actually the main one, she is primarily concerned with maintaining order in Asgard, and tends to be the Velvet Glove to Odin's Iron Hand. She also has an Agenda of her own, seeking to avert Ragnarok entirely, and manipulates agents of her own to this end, occasionally sabotaging even Odin's efforts.
The Guardian of Bifrost, doesn't do much, being quite devoted to his duties and rarely moves from Bifrost. Most heroes encounter him by having to pass through him to get to Asgard proper. Actually sneaking past his amazing senses is next to impossible, and his fighting skills are second only to those of Thor, making him a true challenge. Getting past Heimdall through trickery is the best option, for as Loki will attest, Heimdall isn't the brightest torch on the walls of Asgard.
Goddess of Death, and Queen of her own Underworld Domain, Hel hides the rotting half of her body with a half-mask, long robes and gloves, and very little light in her castle. Despite her hideous appearance, she's actually very sociable, and is on good terms with other Death Gods like Hades and Osiris. As of recent years, she's also become the unofficial Goddess of Goth, and enjoys visiting the Goth scene in mortal form, though those who meet her consider her surprisingly cheerful.
God of Messengers. Also a speedster, and has a bitter rivalry with Hermes, mostly due to the latter having more fame then he does.
Norse God of the Sun. Like the Greek Helios, he drives a chariot to race across the sky, dragging the Sun with him before retiring every night. ...In Asgard, that is. Although in Midgard, he does have the power to create light and flames like a living Sun.
Wife to Thor, the gold-haired goddess (Litterally; you can thank Loki for that) is 50% domestic goddess, tending to her and Thor's children, and 50% Warrior-Maiden, being one of the few goddesses in Asgard who can keep up with Thor on the battlefield. It's usually joked in Asgard that the only thing that makes Thor quake in his boots is Sif' roaring out his name in Anger. Those jokes quickly die out with one of Sif's glares.
Lord of the Fire Giants, which are actually more like a demonic race native to the Infernal Netherworld known as Muspelheim, he lives for nothing more then utter destruction of Everything by Fire. He shows favor to firey villains like Sister Blister, and is on good terms with the Demon Prince Belial, for obvious reasons. He is one of Ymir's recurring adversaries, as Surtur considers Nuclear Armageddon just as good a way to "Burn the World".
: Lord of the Frost Giants, son of Ymir (whom Odin slew and carved up to make Asgard), Thrym has a long-lasting grudge against all the Aesir, but especially against Odin and his kin. His ultimate goal is bringing about the Endless Winter, and this has brought him in conflict with the heroic Ymir, due to the giant's attempts to trigger world-wide Nuclear Winter. Although Thrym hates Ymir for many more reasons, namely insulting his ancestor's memory, and inspiring nearly half of the Frost Giant community to give up their war-mongering ways to live in Peace.
Son of Sif and Thor, Uller is a god of hunting and archery, and routinely comes into conflict with Ymir as the former often tries to hunt down Loki.
The Einherjar and the Valkyries:
The Einherjar are the warriors of Valhalla, who have actually been recruited all over the world throughout the ages. The Valkyries, the handmaidens of battle, are tasked by Odin to scour the Earth for the souls of worthy warriors, to whom they offer a bargain: stave off your Final Judgement by swearing loyalty to Asgard. Those who refuse move on to Final Judgement, those who accept are taken to Valhalla. As the Valkyries have found fewer and fewer Vikings over the years, they quickly learned to widen their talent pool. Now, Valhalla includes valorous warriors of every culture, from Vikings, to Samurai, to U.S. Marines, and actually more then a few late supers. Not all of them are of heroic nature however, and those who visit Valhalla will be disconcerted to see Nazis, Terrorists and a few Supervillains among the ranks of the Einherjar. This is because the Valkyries seek Valor and Battleskill, rather then Virtuous Hearts.
The Einherjar have also modernized over the ages, and are now more or less an organized modern army fighting for Asgard, rather then a motley band of barbarian warriors. They are now grouped in nine regular companies, each led by a captain, under which are four platoons each led by a sergeant (there are no Lieutenants among the Einherjar, which most enlisted men agree is the single best thing about Valhalla.) They are the most common "Cannon Fodder" sent by Odin to fight against Ymir or other missions to Midgard. As dying means they'll only be resurrected in Valhalla, the Einherjar are absolutely fearless.
And that's it for the Aesir. I may do an update about the Artifacts of the Aesir, but honestly, this whole post was intended just for the Balder bit.