Firefly - Eberron style. A match made in geekdom.
Serenity is a "firefly" class Zilargo airship. The firefly class ships are transport ships with the elemental ring in the rear. Only a few still fly, as most were brought down during the Last War. One such ship had landed to bring support to the opposing army at the battle of Serenity Valley, just inside the Cyran border. Now it sits there in the Mournland, waiting for a crew.
Malerie = multiclass (ftr/rog?) / cyran avenger
During the Last War, Malerie Reynolds was a sergeant for the Cyran army. She was fighting and losing the battle of Serenity Valley when the Day of Mourning happened. Somehow she and her friend Zo survived, but the Five Nations are cruel to Cyran refugees. Bitter but hopeful, she knows where to find her own airship, and wants the freedom that her own ship would give.
Zo = changeling fighter (archer build)
Malerie's second in command. A no nonsense soldier. Zo doesn't not let people know that s/he is a changeling unless necessary.
J'Cobb = shifter fighter
Searching through the Mournland for the ship, Mal and Zo ran afoul of another group of looters. The group's strong-man was a shifter that was not treated as an equal, so Mal made him an offer he couldn't refuse. J'Cobb ain't too bright, and he ain't too nice, but rumors say there's a small town in the Eldeen Reaches where he's considered a hero.
Vvash = Lyrandar dragonamrked expert
Dismissed from his house over some minor infraction, VVash had fallen in with some Lhazaar pirates until he met up with Mal and Zo. They recognized his navigational skills and his dragonmark and were quick to bring him into the fold.
Kale = warforged artificer
After the war Kale took on some jobs fixing things, but now he's decided to wander Khorvaire and learn the ways of the world. Kale is wide-eyed and naive but Mal needed someone to fix up the ship and keep it flying. Kale might not be a warrior like most of his kind, but carries his own weight on the crew.
And of course once the ship is in the air, it will pick up a few more crewmembers
Tam = House Jorasco expert
Tam comes from a wealthy Jorasco family, but when he found out that his sister was being experimented on by the Brelish parliament, he threw it all away to break her out. An independent airship is just what he needs to get his sister out of Breland.
Dagger = halfling psion
Dagger, named after the Brelish river, was a gifted child sent to a special school, where she became the subject of numerous experiments. She was recently rescued by her brother and has started to exhibit strange psychic powers. The Brelish government wants her back.
Nara = human expert
In the city of Sharn there are numerous establisments where pleasure isn't a cheap thrill, but an expensive art form. Nara has been working in one such location and has been trying to establish a network of "companions" across Khorvaire in the hopes of improving their way of life. Nara's talents are well-known and being able to travel quickly to all points of Khorvaire would help both her in both of her endeavors
Tome = monk/rogue/ (assassin?) / cleric of the Silver Flame
A devout worshpper of the Silver Flame, with a mysterious past. How does he wind up aboard Serenity? Luck, fate, or something more sinister? Only time will tell.
During my Eberron campaign, I plan on introducing these NPCs one at a time, depending on when and where the PCs are. They might meet Kale on the road or meet Tome on the Lightning Rail, help Zo rescue Mal from trouble, be aboard the pirate ship when Mal and Zo meet VVash, help Nara fight off unwanted attention in Sharn, help Tam rescue his sister.
The slightly different names and genders should keep the players guessing at first.. at least until Malerie asks for help travelling to the Mournland to find the ship. (Or if they decline that job, when they get caught in the middle of Tam rescuing Dagger and escaping in the Serenity)
And then I'll have a full cast of NPCs in a travelling airship that the players can use or ignore as they see fit. Perfect for needing a specific ability the party doesnt have, or if we have a guest player...because everyone will know the correct personality for the NPCs. I am shameless.
But I really do thing Firefly and Eberron were made for each other.