I would love to play in this Adventure Path since I have next to zero chance to play it with my face to face group... I'm a little concerned about time, but I'm a big boy now - I can handle my own schedule without too much trouble. Since I'm already in another of the GM's PBP games, maybe it wouldn't be too difficult.
But here's a basic character concept.
Kath Tathgor
Half-Orc Barbarian (I'd like to use the Dragon Totem variant from UA)
I plan to have Kath alternate between Ranger and Barbarian, and perhaps throwing in some Half-Orc Paragon. Probably go for Frenzied Berserker as a Prestige Class later on.
Ability score wise, high ones would be Strength, Con, and Charisma. He's a huge physical specimen, and evokes quite a presence, though Kath is not terribly friendly or talkative. Kath is supremely confident, so that explains the Charisma.
Hailing from the Pomarj, Kath Tathgor is a member of the Dragon Warriors. This barbarian tribe from the central hills of the Pomarj is comprised of descendants from a group of Orcish and Human warriors who long ago agreed to serve a powerful dragon, whose name has been lost to history. Though originally based in a region known as the Drachengrabs (the Tomb of the Dragon), the Dragon Warriors have moved around the Pomarj before finally settling in the north near the Wild Coast.
Kath and his fellow barbarians have a strong tie to dragons, and have a strong oral tradition that keeps each new generation in line with their dragon-worshipping heritage. The Dragon Warriors even go so far as to teach everyone in the tribe the Draconic language in addition to either Common or Orcish (everyone in the tribe speaks Draconic, and either Common or Orcish).
So how did Kath find himself in Diamond Lake? The Dragon Warriors long ago entered into a baleful agreement with the Orcish rulers of the Pomarj, and because they had failed to live up to this agreement, a number of young Dragon Warriors (including Kath) were forced into slavery at the hands of the Orc warlords. Kath did not care for the life of a slave, and repeatedly tried to escape the clutches of his captors while traveling through the Wild Coast. Eventually, his masters tired of Kath's surliness, and sold the Half-Orc to an unscrupulous merchant, Balabar Smenk, in the small town of Diamond Lake. Kath now seeks to find a way to escape his bonds, and will do whatever it takes to earn his freedom.
Kath believes that the blood of dragons runs through his veins, and Kath knows that one day, he will realize his destiny and rule over the inferior beings he must deal with on a daily basis. For now, Kath is willing to work with other skilled beings in order to accomplish his goals, and hopes to eventually gain revenge on his former captors.
Fitting into the Game
This is an area that I think will work for Kath in spades. According to the intro, the characters need to have a financial motivation to want to leave Diamond Lake and square things. Kath, while not in debt to anyone, is a slave after all, and needs to free himself, so I believe that works well with the stated needs for the characters. Even if he can't be slave to one of the main NPCs (let me know if that's a problem), I can rework him so that he's a slave, indentured servant, whatever fits with what would be going on in Diamond Lake, and thus be in a position to be financially beholden to someone, and fit in with the stated character needs.