An amnesiac Cowboy from an alternate dimension.  Who is he?  No clue.  Where is he from? Damned if he knows.  Lizard mount named Daisy?  Yes!

This halfling grew up being a pottery artist despite her parents' disapproval.  Once hired by a famous potter in town, she discovered he ran an underground sweatshop.  She is now on the run after releasing them all.

Kalashtar are part of a genetic line that are linked with a demon from the Realm of Dreams called a Quori.  Most of them have good demons trying to escape.  Eloshana's is evil.  Uladic tries to make her do evil things and this leaves her in a  delirious state. 

As the only centaur in her battalion, she often has to show she can do more than just escort a cart.

While studying to be a druid, this gnome visited the Feywild.  While there he met an archfey called "The Fey in Silver" who promised him powers in exchange for curiosities from around the world and beyond.  Fizznick took this deal.

It's the DM's job to facilitate telling a story, though more often he tries to wipe out the party.