Nothing is known about Gregor's life prior to the outbreak.
At some point, Gregor came into contact with a group called The Hidden and joined them. He eventually became a butcher for them.
As a Playable Character
Old Man Gregor - "The Hidden"
- Persona: Mythic
- Trait: Fast
- Role: Control
- Rarity: Gold Mythic
- Allegiance: Member of the Hidden.
- Leader Skill: Does not have one.
- Adrenaline Rush: Old Wounds (Attack an enemy for 400% damage, if that enemy has a Bleed status then deal an additional 400% damage (800% total.). Up to 2 other enemies get Daze for 2 turns.)
- Active Skill: Does not have one.
- Specialist Skill: Bloodthirst (Whenever this character attacks a target suffering from Bleeding, the damage of that Bleeding effect is doubled. Target can be doubled once per turn. If this character performs a critical hit on a target, the target gets Crosshairs for 3 turns.)
- Signature Move: Maltreatment (Deal 10% of this character's attack in Maim damage to a line of enemies, those enemies get 10% of this character's attack in Bleed damage for 2 turns.)
- Mythic Abilities
- Cunning (Enemy resistances are 40% lower against this character.)
- Stuck Pig (At the start of each turn, 50.0% chance all characters with the Bleed status take 2000 Bleed damage for 1 turn.)
- Cruel and Unusual (When attacking someone with the Bleed status, 100.0% chance to apply Impair for 1 turn.)
- Misery Loves Company (When attacking, a 40% chance to spread one negative effect to an enemy.)
- Special Weapon: Old Man Gregor's Violent Bone Dagger
- Slot 1: +30% ATK
- Slot 2: A medium bonus to AP when attacking
- Slot 3: Leech Life: When attacking, a better chance to regain HP by 120% of the enemy HP lost.
This list shows the victims Gregor has killed:
- Numerous counts of zombies and unnamed survivors
- Prior to his reveal, many speculated that Gregor's design was for a new revision of Sawyer, but this was later deconfirmed.