Voideyes

Appearance:
Voideyes is a pale gray cat with no eyes or mouth.

Personality:
Sarcastic, levelheaded. It was revealed he was ThunderClan's previous Medecine cat, Dewsong, who was corrupted by Sun, who fed off him and tortured him, then renaming him Voideyes. He apparently has no memory of his past life, and is theories to be stuck in some in-between dimension between StarClan and the Living World. He is not in the dark forest.

Family:
He has no known family, apart from Blackheart, his apprentice.

Stats:
Voideyes has overall average stats and health.

Fighting style:
Voideyes has various attacks that cripple the foe mentally such as "traumatize" or "drain hope" hintinghe is devious.

Skills:
Last aid lick: Kills enemies on low health. Brave targets may resist.

Traumatize: Sends horrible visions to an enemy, leaving them powerless for some time.

Terrify: Deals damage and interrupts enemy action. Brave targets may resist.

Drain Hope: Drains vitality from enemy. Brave targets may resist.

Immortal Spirit: Buffs on a target last two turns longer.

Remade: Dies. After three turns, remakes himself, with full health and energy.

Contagion: Shares the corruption of target's spirit. Spreads debuffs from target to other enemies.

Absolute Corruption: Extends the duration of negative effects on all enemies.

Life Transfer: Swaps life totals with target ally.

Mass Hallucination: Confuses opponents. They can no longer tell who is a threat.

In-game history
Day 0: He is mentioned by name in the intro. ("But what if Dewsong sneaks in there while they are gone?").