Wikia

Family: Werewolf

Weak to: Duct Tape
Strong to: <resistances>
Immune to: Scaredy Cat

Zone	Level (HP)	Drops	Spawns	Notes
Under Mountain	Dynamically Scales 10.0 (950 HP)	Werewolf Pelt	<spawns#>	A, L, K
Deadman's Shadow	11.0 (10,175 HP) 12.5 (11,563 HP)	Shadow Orb Werewolf Pelt Bloody Fabric	<spawns#>	A, L, K
A = Aggressive; P = Passive; L = Links; K = Knockback

It was only possible to encounter the Werewolves during the Halloween 2009 event.
The Werewolves had two different appearances.
Several of the Werewolves' names were parodies of popular people and characters.^[1]

Werewolf