Warrior The Warrior is the male based greatsword frontline class. The Warrior can take on the role of Tank or Raider. Raider is just the EoS term for damage dealer. The two paths for Warrior are Berserker and Protector. Berserker is a Raider, and Protector is a tank.
Archerr The Archer is another strictly Raider class. The Huntress path can choose to specialize in single-target or AoE attacks. The Bard is a hybrid damage dealer and supporter with buffs to improve the group.
Guardian The Guardian is the female spear class. She can be either a Tank or a Raider. The Stormguard is the Raider path with a mix of single target and AoE based damage. The Earthguard is the Tank path with high defense and scaling attack damage based on her defense
Sorceress The Sorceress is currently the only mage type class in the game. She only fills the Raider role. The Firemage focuses in high damage. The Icemage is more on combat control with CC.
Rogue Rogue is a male based dual-wielder, that is purely a Raider. The two paths are Duelist and Assassin. Duelist focuses on chaining multiple attacks together to burst down an enemy. Assassin relies more on poisons to deal damage.