In addition to having a type and class, all heroes available in-game have a primary role. Roles that a hero receives are dependent on their skill set and attributes. Heroes roles aren't necessary dependent of hero type (e.g. Intelligence heroes can be tanks like Shemira). Currently, there are 9 roles.
Heroes below Mythic tier lack a class and instead have both primary and secondary roles. Currently, there are 22 heroes under mythic tier.
Roles
Tank
Tanks are sturdy heroes, that can soak loads of incoming damage. They often have means to heal themselves.
Debuffers are heroes that use their skills to incapacitate enemy heroes in ways such as making them attack slower, poisoning them, or other methods of weakening.
Control-type heroes use their abilities to disable or charm some of their foes. They remove enemies from the battlefield or make them fight their allies.
Heroes with the Burst Damage role deal damage similarly to other damage dealing roles. The main difference between them is that Burst Damage heroes deal most of their damage in the form of short bursts unlike steady damage dealt by Continuous Damage or AoE heroes.
