Hey there, thanks for your interest. There are many more characters, and still in the making.
I'm currently publishing the sheets on Discord regularly, once the game is out, there will be a full list on the Steam Guide section just like for DD2 and all of my other games. I will also reveal some of them in a Kickstarter update soon, so make sure to follow!
www.kickstarter.com/projects/dungeondreamsrpg/dungeon-dreams-wanderers