|Game||Tales of Zestiria|
|Race|| Human (former)|
|Occupation||Lord of Calamity|
|Character Designer||Minoru Iwamoto|
|JP Voice Actor(s)||Takayuki Sugo|
|EN Voice Actor(s)||Patrick Seitz|
Heldalf (ヘルダルフ Herudarufu?, "Helldalf") is the main antagonist in Tales of Zestiria. He is known as the Lord of Calamity. Heldalf was formerly known as a human named Georg Heldalf, he is now the most powerful hellion and only seeks to create more malevolence and hellions by initiating a war between Hyland and Rolance. He uses the powers of Symonne, a seraph of illusions who is not affected by any malevolence and Maltran, a powerful hellion known as the "Blue Valkyrie", as his minions to corrupt the innocent people of the lands.
Heldalf resembles a lion hellion with a brown beard, claws, and dark skin.
Corrupted by the malevolence, he only seeks destruction and the expansion of malevolence in the hearts of humans and seraphim.