Deadeye

The Deadeye is your classic Bow & Arrow character, shooting a variety of Arrow Skills to deal damage. The Deadeye also has access to Tailwind, a buff that makes your character much faster.
Pathfinder

The Pathfinder can also use a Bow and Arrow, but she has access to an exclusive assortment of Damage Skills known as Concoctions, such as
Acidic Concoction.
The Pathfinder also has a very unique passive that gives you extra Passive Points on your regular Skill Tree, and even lets you path from a different Class starting location.