In the lore of Diablo-3 you can see that the heroes have a specific background, with own lore and reason to enter this journey to kill evil, get revenge, etc.
those are.
- The female Demon Hunter.
The female Demon Hunter in Diablo III fled from her village as a child
during a demonic invasion. She was the only survivor. After days, she
was found by a Demon Hunter and was taken in as a member. Since every
Demon Hunter has a story like this, it is possible that the background
for the male character will be similar.
- The female Wizard.
This 19 year old female wizard was sent to the Zann Esu mage clan, but
later handed over to the powerful Vizjerei since she was a "rude and
uncooperative student," that the smaller mage clan could not control.
They hoped the harsh discipline at Vizjerei "would break her anarchic
spirit." Yet even the Vizjerei instructors were unable to rein her in.
She was continually being caught seeking out dangerous and forbidden
magics without care for herself or anyone around her.
- The male Monk.
The monk serves the Elder Monks of the monastery, who seek to destroy
evil in all forms. He thinks of himself as the weapon of the gods
against all that is evil. He is a peaceful, patient and good man who
aids those who suffer, with no hatred against anyone, in contrast to
the Barbarian. He is adept in Martial Arts, being able to defeat
multiple foes without the aid of weapons.
- The male Barbarian.
This is actually the same individual from Diablo 2. He's aged twenty
years, and he's got a personality in this game. Look at his gear; his
[[armor]] has points on which he could impale himself. It's extra
protection for the harsh environment, but it's also dangerous to him.
The day to day life characters lead in this world is very hard.
- The male Witch Doctor.
The fearsome Witch Doctor of the umbaru is believed to be a legend by
many, but Abd al-Hazir has seen them with his own eyes, documented in
the thirteenth entry of his writings.The second most sacred belief of the tribes is their philosophy of
self-sacrifice and non-individuality, of suppressing one's
self-interest for the good of the tribe. Their most current war
created an intense social upheaval among the tribes due to an
incident, of which details are lacking, but might be the reason the
Witch Doctor has traveled west to Tristram.
But in no place (neither game or web) I found the real names of those amazing heroes. Did I miss some lore in-game where they talk about it? or you must be nameless to fight against the evil?
Best Answer
Here's what I've compiled, based on the Diablo lore and the Heroes of the Storm character backstories.
Female Demon Hunter: Valla
Diablo III: Hatred and Discipline, Demon Hunter short story
Heroes of the Storm: Valla, Demon Hunter
Male Witch Doctor: Nazeebo
Not named in Diablo III, however the character background in Heroes of the Storm is consistent with that of the heretical Witch Doctor encountered by Benu in the Doubtwalker short story.
Heroes of the Storm: Nazeebo, Heretic Witch Doctor
Female Barbarian: Sonya
Not named in Diablo III, however the character background in Heroes of the Storm seems consistent with that revealed in the game.
Heroes of the Storm: Sonya, Wandering Barbarian
Male Barbarian: Kehr Odwyll (questionable)
Female Wizard: Li-Ming
Diablo III: Firefly, Wizard short story
Heroes of the Storm: Li-Ming, Rebellious Wizard